Сократите дроби 140/210 105/165 144/360 240/560 30/150 80/200 21/36 91/108

Question

Сократите дроби 140/210 105/165 144/360 240/560 30/150 80/200 21/36 91/108

Answer 1

2/3 7/11 2/5 3/7 1/5 2/5 7/12 ?