这三道数学计算题怎么做。(要求:要计算过程。)

2025-02-27 07:40:39
推荐回答(4个)
回答1:

15×3/8+9×37.5%
=15×3/8+9×3/8
=(15+9)×3/8
=24×3/8
=9

14÷7/2÷12.5%
=14×2/7×0.125
=4×0.125
=0.5

3/5×25%+125%
=0.15+1.25
=1.4

回答2:

2)
15×3/8+9×37.5%
=15×3/8+9×3/8
=3/8×(15+9)
=9
3)14÷7/2÷12.5%
=14÷(7/2×1/8)
=14÷7/16
=14×16/7
=32
4)3/5×25%+125%
=3/5×1/4+5/4
=3/5×1/4+5×1/4
=1/4×(3/5+5)
=1/4×28/5
=7/5

回答3:

=9
=32
=1.4

回答4: