Question

8-3 6/15=
16 3/13-6 8/13=
12-11 6/11=
(20 16/25+13 9/25)-(23 4/14 +7 13/14

Answer 1

1.8-3 615=815-5115=(20-51)15=6915=4,6
2.16 313-6 813=2413-8613=6213=4 1013