Привидите дроби 2/3 , 1/2 , 3/4, 1/6 , 4/15 , 7/20, 11/30 к знаминателю 60
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