18 / 5 + 10 / 7 + 18 / 13 + 10 / 1 is equal to?

18 / 5 + 10 / 7 + 18 / 13 + 10 / 1 is equal to?

5/18+7/10+13/18+1/10
=5/18+13/18+7/10+1/10
=18/18+8/10
=1+4/5
=9/5