简算 (5/6-3/4)/(1/4+1/6)

简算 (5/6-3/4)/(1/4+1/6)
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最佳答案

回答者:网友
(5/6-3/4)/(1/4+1/6)
=(5/6-3/4)/(1/4+1/6)+(1/6-1/4)/(1/4+1/6)-(1/6-1/4)/(1/4+1/6)
=-(1/6-1/4)/(1/4+1/6)
=(1/4-1/6)/(1/4+1/6)
=(1/12)/(5/12)
=1/5

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