3/8比1/3=x比1/6 0.75/x=0.25/3 8/9比0.2=x比1.5 1/2比1/5=1/4比x 1.25比0.25=x/1.6

问题描述:

3/8比1/3=x比1/6 0.75/x=0.25/3 8/9比0.2=x比1.5 1/2比1/5=1/4比x 1.25比0.25=x/1.6

3/8比1/3=x比1/6
1/3x=3/8×1/6
1/3x=1/16
x=3/16
0.75/x=0.25/3
解0.25x=0.75×3
x=9
其他几题解法类似,请自己动手试试.