四分之一除以八分之三的商加上五分之二所得的和乘二分之一积是多少?

2025-01-20 22:47:30
推荐回答(3个)
回答1:

(1/4÷3/8+2/5)X1/2=(8/12+2/5)x1/2=64/60ⅹ1/2=8/15,那么积就是8/15化成小数是约等于0.53。

回答2:

(1/4÷3/8+2/5)×1/2

=(2/3+2/5)×1/2

=1/3+1/5

=8/15

回答3:

(1/4÷3/8+2/5)X1/2
=(1/4x8/3+2/5)x1/2
=(2/3+2/5)x1/2
=2/3x1/2+2/5x1/2
=1/3+1/5
=8/15