(1/24+2/71)×21+29/71怎么用简便方法计算?

日期:2021-08-25 09:38:34 人气:1

(1/24+2/71)×21+29/71怎么用简便方法计算?

21/24+42/71+29/71
=21/24+71/71
=7/8+1
=1又7/8
    A+
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