приведите дроби 2/3,1/2,3/4,1/6,4/15,7/20,11/30 к знаменателю60

2/3=40/60; 1/2=30/60; 3/4=45/60; 1/6=10/60; 4/15=16/60: 7/20=21/60 11/30=22/60

2/3=40/60,1/2=30/60,3/4=30/60, 1/6=10/60 ,4/15=16/60, 6/20=18/60, 11/30=22/60