Question

解方程.4／15x=16／25 6／7x=5/8x9/14 1／2x-1/8x=1/24

Answer 1

4／15x=16／25

x=16/25×15/4

x=12/5

6／7x=5/8x9/14

x=5/8×9/14×7/6

x=15/32

1／2x-1/8x=1/24

两边同乘以24,得

12x-3x=1

9x=1

x=1/9