jekadva

Verified answer

A) = 7/16 + 4/16 = 11/16
б) = 25/36 -  8/36 = 17/36
в) = 14/24 - 5/24 = 9/24 = 3/8
г) = 15/21 - 11/21= 4/21
д) = 3/18 + 5/18 = 8/18 = 4/9
е) = 19/45 + 12/45 = 31/45
ж) = 30/32 - 3/32 = 27/32
з) = 7/15 + 5/15 = 12/15 = 4/5
и) = 33/39 - 20/39 = 13/39 = 1/3
к) = 3/50 + 36/50=39/50
л) = 43/62 - 20/62 = 23/62
м) = 29/64 + 24/64 = 53/64