№536 1/2 +6 3/7 6+ 4 9/11 2/9+1 8/15

Question

№536
1/2 +6 3/7
6+ 4 9/11
2/9+1 8/15

Answer 1

1/2+6 3/7=6 7+6/14=6 13/14
6+4 9/11=10 9/11
2/9+1 8/15=1 30+72/135=1 102/135=1 34/45