8 3/4(a+b), если a=2 1/7, b=1 1/7

Question

8 3/4(a+b), если a=2 1/7, b=1 1/7

Answer 1

15/7+8/7=23/7=3 целых 2/7
35/4*23/7=5/4*23/1=115/4=28 целых 3/4

Answer 2

8 3/4 * (2 1/7+1 1/7)= 8 3/4 * 3 1/7= 35/4*22/7=770/28=27 1/2