1.5减去2/3的差,除以3/4加上0.5的和,商是多少?（不要方程）
人气：471 ℃ 时间：2019-09-25 08:42:09
解答
商=(1.5-2/3)÷(3/4+0.5)=20/21（1.5-2/3)÷(3/4+0.5)过程，怎么算出来的？（1.5-2/3)÷(3/4+0.5)=5/6÷7/8=5/6×8/7=20/21
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