18+15分之32/(21分之62-7分之10)
=18+15分之32/(21分之62-21分之30)
=18+15分之32/(21分之32)
=18+15分之32×32分之21
=18+5分之7
=19又5分之2
18+15分之32/(21分之62-7分之10) 能简算简算
18+15分之32/(21分之62-7分之10) 能简算简算
数学人气:455 ℃时间:2019-09-25 21:48:33
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