3per2dibagi8per3dibagi15per4

3/2 : 8/3 : 15/4
3/2 * 3/8 : 4/15
=> 3*3*4 /2*8*15
=> 9 /4(15)
=> 9/60
=> 3 / 20
=> 0,15

3/2÷8/3÷15/4=
3/2×3/8×4/15=
9/16×4/15=
3/4×1/5=
3/20