简算：4/25×23+4/25×67 （1/2-1 - 知识问答

简算：4/25×23+4/25×67 （1/2-1/6）×3/5÷1/5

1个回答

(4/25)×23+(4/25)×67
=(4/25)×(23+67)
=(4/25)×100
=4×(100/25)
=4×4
=16
(1/2-1/6)×(3/5)÷(1/5)
=(1/2-1/6)×[(3/5)÷(1/5)]
=(3/6-1/6)×3
=(2/6)×3
=6/6
=1

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