Question

25分之6比X=50,解比例 还有4分之1X+5分之1×45=12

Answer 1

6/25 :x=50

50x=6/25

50x=0.24

x=0.24/50

x=0.0048

1/4 x 1/5 x*45=12

1/4 x 1/5 x=12/45

(1/4加1/5)x=4/15

9/20 x=4/15

x=4/15 / 9/20

x=4/15 * 20/9

x=16/27