43×136/137+136×59/137+70×68/137等于多少
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43×136/137+136×59/137+70×68/137等于多少
43×136/137+136×59/137+70×68/137等于多少
43×136/137+136×59/137+70×68/137等于多少
43×136/137+136×59/137+70×68/137
=43×136/137+136×59/137+35x2×68/137
=43×136/137+136×59/137+35x136/137
=(43+59+35)x136/137
=137x136/137
=136
娘啊:就是136啊
这里关键就是只要把70x68变成35x136不就行了!然后就提取公因数不就行了!
=(43x136)/137+(59x136)/137+(35x136)/137
=(43+59+35)x136/137
=(137x136)/137
=136
1.43×136/137+136×59/137+70×68/137
=43×136/137+136×59/137+35x2×68/137
=43×136/137+136×59/137+35x136/137
=(43+59+35)x136/137
=137x136/137
=136
2.这里关键就是只要把70x68变成35x136,然后就提取公因数。<...
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1.43×136/137+136×59/137+70×68/137
=43×136/137+136×59/137+35x2×68/137
=43×136/137+136×59/137+35x136/137
=(43+59+35)x136/137
=137x136/137
=136
2.这里关键就是只要把70x68变成35x136,然后就提取公因数。
=(43x136)/137+(59x136)/137+(35x136)/137
=(43+59+35)x136/137
=(137x136)/137
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