Выполните сложение смешанных чисел а)8+5 1/2 б)3 3/8+1/16 в)7 3/5+5 2/5 г)4 2/9+3 3/7 д)9 7/15+2 3/4.

8 + 5 1/2 = 13 1/2

3 3/8 + 1/16 = 3 6/16 + 1/16 = 3 7/16

7 3/5 + 5 2/5 = 12 5/5 = 13

4 2/9 + 3 3/7 = 4 14/63 + 3 27/63 = 7 41/63

9 7/15 + 2 3/4 = 9 28/60 + 2 45/60= 11 73/60 = 12 13/60