计算(1-1又1/2-3/8+7/12)乘(-24)除(-1/2)
人气:409 ℃ 时间:2019-11-14 12:22:58
解答
=(1-3/2-3/8+7/12)×(24×2)
=(1-3/2-3/8+7/12)×48
=1×48-3/2×48-3/8×48+7/12×48
=48-72-18+28
=-14
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