5⼀9:1⼀4x等于7⼀8:4⼀5,X等于多少?

2025-02-23 17:48:12
推荐回答(2个)
回答1:

5/9:1/4x=7/8:4/5
1/4×7/8x=5/9×4/5
7/32x=4/9
x=4/9÷7/32
=4/9×32/7
=128/63

回答2:

5/9:1/4x=7/8:4/5

1/4x*7/8=5/9*4/5

7/32x=4/9

x=128/63