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简算 (0.4+2/3)/(5/6-0.75)*0.5
人气:425 ℃ 时间:2019-12-13 16:28:10
解答
(0.4+2/3)/(5/6-0.75)*0.5
=(0.4*0.5+2/3**0.5)/(5/6-3/4)
=(0.2+1/3)/(5/6-3/4) 【分子分母同乘以12】
=(2.4+4)/(10-9)
=6.4
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