tolong kaka yg No 1 mkcih kk...

1/2 = 2/4 ( ×2)
1/3 = 3/9 (×3)
2/3=4/6 (×2)
3/4 = 9/12 (×3)
2/5 =4/10 (×2)
5/6=25/30 (×5)