a) 7/10 + 8/10 = 15/10 = 1 1/2Б) 4/5 + 9/10 = 8/10 + 9/10 = 17/10 = 1 7/10В) 1/2 + 2/5 = 5/10 + 4/10 = 9/10Г) 5/8 + 7/10 = 25/40 + 28/40 = 53/40 = 1 13/40Д) 3/10 + 1/100 = 30/100 + 1/100 = 31/100Е) 1/30 + 3/40 = 4/120 + 3/40 = 7/120
a) 7/10 + 8/10 = 15/10 = 1 1/2
Б) 4/5 + 9/10 = 8/10 + 9/10 = 17/10 = 1 7/10
В) 1/2 + 2/5 = 5/10 + 4/10 = 9/10
Г) 5/8 + 7/10 = 25/40 + 28/40 = 53/40 = 1 13/40
Д) 3/10 + 1/100 = 30/100 + 1/100 = 31/100
Е) 1/30 + 3/40 = 4/120 + 3/40 = 7/120