1/2,1/3,2/3,1/4,3/4,1/5,3/5,5/6,1/8,7/8,1/9,5/9,1/10,9/10,1/12,1/15,11/12,1/6,3/20,1/24,19/24,11/24,7/30 к знаменателям 12и30

1/2=6/12=15/301/3=4/12=10/302/3=8/12=20/301/4=3/12=7,5/303/4=9/12=22,5/301/5=2,4/12=6/303/5=7,2/12=18/305/6=10/12=25/301/8=1,5/12=3,75/307/8=10,5/12=26,25/301/9=12:9/12=30:9/305/9=5*(12/9)/12=5*(30/9)/301/10=1,2/12=3/309/10=10,8/12=27/301/12=2,5/301/15=0,8/12=2/3011/12=27,5/301/6=2/12=5/303/20=1,8/12=4,5/301/24=0,5/12=1,25/3019/24=9,5/12=23,75/3011/24=5,5/12=13,75/307/30=2,8/12