64/70 kali 14/18 pake caranya yah plis jawab

64/70 × 14/18 = 896/1260 : 4/4
= 224/315 : 7/7 = 32/45

64/60×14/18=
16/15×14/18=
16/15×7/9=
16×7=112
per
15×9=135
112/135:7/7=32/45