How about 1 / 3 + 2 / 5-2 / 3 + 1 / 2

How about 1 / 3 + 2 / 5-2 / 3 + 1 / 2

1 / 3 + 2 / 5-2 / 3 + 1 / 2
=5 / 15 + 2 / 15-10 / 15 + 1 / 2
=(5 + 2-10) + 1 / 2
=1 / 5 + 1 / 2
=2 out of 10 + 5 out of 10
=7 out of 10