1/3+1/5= 2/3+1/6= 4/3+2/3

1/3+1/5

= 5/15+3/15

=8/15

2/3+1/6

= 4/6+1/6

=5/6

4/3+2/3

=6/6

=1

1. 1/3 + 1/5 = 5/15 + 3/15 = 8/15
.
2. 2/3 + 1/6= 4/6 + 16 = 5/6
.
3. 4/3 + 2/3 = 6/3 = 2