专练51 异分母分数运算（10套，5页，含答案）
知识点：
异分母分数相加减： 先通分，把两个分数转化为同分母分数，然后分母不变，分子相加减。 |
典型例题：
![](https://wkrtcs.bdimg.com/rtcs/image?w=22&md5sum=8dd9830d4788abe6a8aaeb08735948b7&sign=7d4c63b5b5&rtcs_flag=1&rtcs_ver=4&l=webapp&bucketNum=295&ipr={"t":"img","w":"22","h":"43","c":"7c1bc20c016ab66f2b43e99fbf038c45.png"})
![](https://wkrtcs.bdimg.com/rtcs/image?w=86&md5sum=8dd9830d4788abe6a8aaeb08735948b7&sign=7d4c63b5b5&rtcs_flag=1&rtcs_ver=4&l=webapp&bucketNum=295&ipr={"t":"img","w":"86","h":"43","c":"a3c6469ce2a68910f1f9c1497e911f5d.png"})
专练52 异分母分数运算
![](https://wkrtcs.bdimg.com/rtcs/image?w=64&md5sum=8dd9830d4788abe6a8aaeb08735948b7&sign=7d4c63b5b5&rtcs_flag=1&rtcs_ver=4&l=webapp&bucketNum=295&ipr={"t":"img","w":"64","h":"43","c":"8797f3eb0776c2b9f54c284c05c45d04.png"})
![](https://wkrtcs.bdimg.com/rtcs/image?w=64&md5sum=8dd9830d4788abe6a8aaeb08735948b7&sign=7d4c63b5b5&rtcs_flag=1&rtcs_ver=4&l=webapp&bucketNum=295&ipr={"t":"img","w":"64","h":"43","c":"355ba7a9bb1b827bcd41391f71fcc647.png"})
![](https://wkrtcs.bdimg.com/rtcs/image?w=111&md5sum=8dd9830d4788abe6a8aaeb08735948b7&sign=7d4c63b5b5&rtcs_flag=1&rtcs_ver=4&l=webapp&bucketNum=295&ipr={"t":"img","w":"111","h":"43","c":"770297fddf5f65f08f8c93c5aa93dc08.png"})
![](https://wkrtcs.bdimg.com/rtcs/image?w=16&md5sum=8dd9830d4788abe6a8aaeb08735948b7&sign=7d4c63b5b5&rtcs_flag=1&rtcs_ver=4&l=webapp&bucketNum=295&ipr={"t":"img","w":"16","h":"43","c":"0c4209a8faecbcee233e5df1e1751e24.png"})
答案：![](https://wkrtcs.bdimg.com/rtcs/image?w=28&md5sum=8dd9830d4788abe6a8aaeb08735948b7&sign=7d4c63b5b5&rtcs_flag=1&rtcs_ver=4&l=webapp&bucketNum=295&ipr={"t":"img","w":"28","h":"43","c":"0a9ceeb3cde530d0266a99efe81bf962.png"})
答案：![](https://wkrtcs.bdimg.com/rtcs/image?w=16&md5sum=8dd9830d4788abe6a8aaeb08735948b7&sign=7d4c63b5b5&rtcs_flag=1&rtcs_ver=4&l=webapp&bucketNum=295&ipr={"t":"img","w":"16","h":"43","c":"a08f6fd5ee7f72ac3ffbec2809ed9df9.png"})
专练53 异分母分数运算
![](https://wkrtcs.bdimg.com/rtcs/image?w=22&md5sum=8dd9830d4788abe6a8aaeb08735948b7&sign=7d4c63b5b5&rtcs_flag=1&rtcs_ver=4&l=webapp&bucketNum=295&ipr={"t":"img","w":"22","h":"43","c":"70e7efdd0b858341812e625a071abd09.png"})
![](https://wkrtcs.bdimg.com/rtcs/image?w=16&md5sum=8dd9830d4788abe6a8aaeb08735948b7&sign=7d4c63b5b5&rtcs_flag=1&rtcs_ver=4&l=webapp&bucketNum=295&ipr={"t":"img","w":"16","h":"43","c":"90e0ed137535e1a0d92e3d52417f4393.png"})
11－ ![](https://wkrtcs.bdimg.com/rtcs/image?w=34&md5sum=8dd9830d4788abe6a8aaeb08735948b7&sign=7d4c63b5b5&rtcs_flag=1&rtcs_ver=4&l=webapp&bucketNum=295&ipr={"t":"img","w":"34","h":"43","c":"2ea3d60c0bd2b11faadabd44c04a26dd.png"})
![](https://wkrtcs.bdimg.com/rtcs/image?w=98.00&md5sum=8dd9830d4788abe6a8aaeb08735948b7&sign=7d4c63b5b5&rtcs_flag=1&rtcs_ver=4&l=webapp&bucketNum=295&ipr={"t":"img","r":"r_28","w":"98.00","h":"46.00","dataType":"wmf","c":"word/media/image64.png"})
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专练54 异分母分数运算
![](https://wkrtcs.bdimg.com/rtcs/image?w=16&md5sum=8dd9830d4788abe6a8aaeb08735948b7&sign=7d4c63b5b5&rtcs_flag=1&rtcs_ver=4&l=webapp&bucketNum=295&ipr={"t":"img","w":"16","h":"43","c":"6c2e3e2e98abd1fd9a66519db9da8d90.png"})
![](https://wkrtcs.bdimg.com/rtcs/image?w=16&md5sum=8dd9830d4788abe6a8aaeb08735948b7&sign=7d4c63b5b5&rtcs_flag=1&rtcs_ver=4&l=webapp&bucketNum=295&ipr={"t":"img","w":"16","h":"43","c":"0d22222bb8de12f364c2851ca96ea265.png"})
![](https://wkrtcs.bdimg.com/rtcs/image?w=102&md5sum=8dd9830d4788abe6a8aaeb08735948b7&sign=7d4c63b5b5&rtcs_flag=1&rtcs_ver=4&l=webapp&bucketNum=295&ipr={"t":"img","w":"102","h":"43","c":"ca010d2d83433f3630da5660bdb179a3.png"})
![](https://wkrtcs.bdimg.com/rtcs/image?w=28&md5sum=8dd9830d4788abe6a8aaeb08735948b7&sign=7d4c63b5b5&rtcs_flag=1&rtcs_ver=4&l=webapp&bucketNum=295&ipr={"t":"img","w":"28","h":"43","c":"a8ed9b851903f40e0f5b222cecb8a509.png"})
答案：![](https://wkrtcs.bdimg.com/rtcs/image?w=28&md5sum=8dd9830d4788abe6a8aaeb08735948b7&sign=7d4c63b5b5&rtcs_flag=1&rtcs_ver=4&l=webapp&bucketNum=295&ipr={"t":"img","w":"28","h":"43","c":"9d9200eac3e67b308a8f84580ef85694.png"})
答案：![](https://wkrtcs.bdimg.com/rtcs/image?w=27&md5sum=8dd9830d4788abe6a8aaeb08735948b7&sign=7d4c63b5b5&rtcs_flag=1&rtcs_ver=4&l=webapp&bucketNum=295&ipr={"t":"img","w":"27","h":"43","c":"a72b18c11198b7bf9f0fea1af1863fd2.png"})
专练55 异分母分数运算
![](https://wkrtcs.bdimg.com/rtcs/image?w=16&md5sum=8dd9830d4788abe6a8aaeb08735948b7&sign=7d4c63b5b5&rtcs_flag=1&rtcs_ver=4&l=webapp&bucketNum=295&ipr={"t":"img","w":"16","h":"43","c":"6ca8c824c79dbb80005f071431350618.png"})
![](https://wkrtcs.bdimg.com/rtcs/image?w=16&md5sum=8dd9830d4788abe6a8aaeb08735948b7&sign=7d4c63b5b5&rtcs_flag=1&rtcs_ver=4&l=webapp&bucketNum=295&ipr={"t":"img","w":"16","h":"43","c":"add2b5c8b974155f65e931df2054a985.png"})
![](https://wkrtcs.bdimg.com/rtcs/image?w=100&md5sum=8dd9830d4788abe6a8aaeb08735948b7&sign=7d4c63b5b5&rtcs_flag=1&rtcs_ver=4&l=webapp&bucketNum=295&ipr={"t":"img","w":"100","h":"43","c":"7e49d8186662fef3951c9fd2a0af8e33.png"})
1－![](https://wkrtcs.bdimg.com/rtcs/image?w=16&md5sum=8dd9830d4788abe6a8aaeb08735948b7&sign=7d4c63b5b5&rtcs_flag=1&rtcs_ver=4&l=webapp&bucketNum=295&ipr={"t":"img","w":"16","h":"43","c":"93b05c90d14a117ba52da1d743a43ab1.png"})
专练56 异分母分数运算
![](https://wkrtcs.bdimg.com/rtcs/image?w=28&md5sum=8dd9830d4788abe6a8aaeb08735948b7&sign=7d4c63b5b5&rtcs_flag=1&rtcs_ver=4&l=webapp&bucketNum=295&ipr={"t":"img","w":"28","h":"43","c":"1b7fcaa2e80f3cc459ba13babb1338cb.png"})
![](https://wkrtcs.bdimg.com/rtcs/image?w=22&md5sum=8dd9830d4788abe6a8aaeb08735948b7&sign=7d4c63b5b5&rtcs_flag=1&rtcs_ver=4&l=webapp&bucketNum=295&ipr={"t":"img","w":"22","h":"43","c":"d57ff3886ec9281ce84d249dc389a802.png"})
![](https://wkrtcs.bdimg.com/rtcs/image?w=16&md5sum=8dd9830d4788abe6a8aaeb08735948b7&sign=7d4c63b5b5&rtcs_flag=1&rtcs_ver=4&l=webapp&bucketNum=295&ipr={"t":"img","w":"16","h":"43","c":"22417f146ced89939510e270d4201b28.png"})
答案：
答案：![](https://wkrtcs.bdimg.com/rtcs/image?w=27&md5sum=8dd9830d4788abe6a8aaeb08735948b7&sign=7d4c63b5b5&rtcs_flag=1&rtcs_ver=4&l=webapp&bucketNum=295&ipr={"t":"img","w":"27","h":"43","c":"4497aadaeffe498074034fea0b11c01a.png"})
专练57 异分母分数运算
![](https://wkrtcs.bdimg.com/rtcs/image?w=22&md5sum=8dd9830d4788abe6a8aaeb08735948b7&sign=7d4c63b5b5&rtcs_flag=1&rtcs_ver=4&l=webapp&bucketNum=295&ipr={"t":"img","w":"22","h":"43","c":"126f8d196d9a1d04aab0b871fe021416.png"})
![](https://wkrtcs.bdimg.com/rtcs/image?w=64&md5sum=8dd9830d4788abe6a8aaeb08735948b7&sign=7d4c63b5b5&rtcs_flag=1&rtcs_ver=4&l=webapp&bucketNum=295&ipr={"t":"img","w":"64","h":"43","c":"57ab4bd6c4d313c693bd8804c13d4cde.png"})
![](https://wkrtcs.bdimg.com/rtcs/image?w=16&md5sum=8dd9830d4788abe6a8aaeb08735948b7&sign=7d4c63b5b5&rtcs_flag=1&rtcs_ver=4&l=webapp&bucketNum=295&ipr={"t":"img","w":"16","h":"43","c":"9df743fb4a026d67e85ab08111c4aedd.png"})
专练58 异分母分数运算
答案：![](https://wkrtcs.bdimg.com/rtcs/image?w=28&md5sum=8dd9830d4788abe6a8aaeb08735948b7&sign=7d4c63b5b5&rtcs_flag=1&rtcs_ver=4&l=webapp&bucketNum=295&ipr={"t":"img","w":"28","h":"43","c":"b69824181211d2c042cf9f1ea763f616.png"})
答案：
专练59 异分母分数运算
![](https://wkrtcs.bdimg.com/rtcs/image?w=64&md5sum=8dd9830d4788abe6a8aaeb08735948b7&sign=7d4c63b5b5&rtcs_flag=1&rtcs_ver=4&l=webapp&bucketNum=295&ipr={"t":"img","w":"64","h":"43","c":"9c9e6af77751e284ef9b819a43e8b30e.png"})
![](https://wkrtcs.bdimg.com/rtcs/image?w=28&md5sum=8dd9830d4788abe6a8aaeb08735948b7&sign=7d4c63b5b5&rtcs_flag=1&rtcs_ver=4&l=webapp&bucketNum=295&ipr={"t":"img","w":"28","h":"43","c":"f3b87e12340e7622c6db7226639ddaf0.png"})
![](https://wkrtcs.bdimg.com/rtcs/image?w=105&md5sum=8dd9830d4788abe6a8aaeb08735948b7&sign=7d4c63b5b5&rtcs_flag=1&rtcs_ver=4&l=webapp&bucketNum=295&ipr={"t":"img","w":"105","h":"43","c":"1ffe8dce6445b5b19613d589c429671c.png"})
专练5-10 异分母分数运算
![](https://wkrtcs.bdimg.com/rtcs/image?w=22&md5sum=8dd9830d4788abe6a8aaeb08735948b7&sign=7d4c63b5b5&rtcs_flag=1&rtcs_ver=4&l=webapp&bucketNum=295&ipr={"t":"img","w":"22","h":"43","c":"d80dee887b88cc2e849f29df6db3e5a0.png"})
![](https://wkrtcs.bdimg.com/rtcs/image?w=28&md5sum=8dd9830d4788abe6a8aaeb08735948b7&sign=7d4c63b5b5&rtcs_flag=1&rtcs_ver=4&l=webapp&bucketNum=295&ipr={"t":"img","w":"28","h":"43","c":"9cd43eaee0a393fa141af5a699674096.png"})
![](https://wkrtcs.bdimg.com/rtcs/image?w=133&md5sum=8dd9830d4788abe6a8aaeb08735948b7&sign=7d4c63b5b5&rtcs_flag=1&rtcs_ver=4&l=webapp&bucketNum=295&ipr={"t":"img","w":"133","h":"43","c":"3a0789109e5a942766cf89b7407cf379.png"})
答案：0；![](https://wkrtcs.bdimg.com/rtcs/image?w=27&md5sum=8dd9830d4788abe6a8aaeb08735948b7&sign=7d4c63b5b5&rtcs_flag=1&rtcs_ver=4&l=webapp&bucketNum=295&ipr={"t":"img","w":"27","h":"43","c":"b3d88de656ac257a94ffaae441d5160f.png"})
答案：![](https://wkrtcs.bdimg.com/rtcs/image?w=28&md5sum=8dd9830d4788abe6a8aaeb08735948b7&sign=7d4c63b5b5&rtcs_flag=1&rtcs_ver=4&l=webapp&bucketNum=295&ipr={"t":"img","w":"28","h":"43","c":"412ec04f4a8189f2ef589681618fb100.png"})
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