Question

How we will do +- of fraction

Answer 1

We will add or subtract fraction by making denominator same
e.g. 1/2+3/5
= LCM of 2 and 5 =10
=(1/2×5/5) + (3/5×2/2)
=5/10 + 6/10
=11/10

Answer 2

You can add and subtract a fraction by finding out the LCMs of the fractions and getting the same denominators then you easily do the operation