8乘(16分之1+32分之1-56分之) 简便计算
人气:429 ℃ 时间:2019-10-06 23:22:32
解答
8(1/16+1/32-1/56)
=1/2+1/4-1/7
=(14+7-4)/28
=17/281+6分之1+12分之7-20分之91+1/6+7/12-9/20=11/20+9/12=11/20+3/4=11/20+15/20=26/20=13/10877-448除以16乘以31 递等式计算877-448/16 *31?=877-28*(30+1)=877-840-28=37-28=9第一题,17分之13除以(6分之5+3分之2乘8分之3)第二题,10除以【(4.9-10分之29)-3.5乘7分之3】递等式计算先采纳吧
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