tolong pakai cara ya

1. 8/x=1/8
x=64
y/32=1/8
8y=32
y=4

2. x/9=2/3
3x=18
x=6
12/y=2/3
2y=36
y=18

3. x/15=4/12
12x=60
x=5
3/y=4/12
4y=36
y=9

4. 12/x=8/14
8x=12.14
x=12.14/8
x=21
20/y=8/14
8y=280
y=35

smg membantu:))