Question

Find the sum by suitable arrangement


Explain also ​

Answer 1

Answer is 3/10

Explanation:

3/5+(-4/5) = 3/5-4/5 = -1/5

-1/4+3/4 = 2/4 = 1/2

1/2 -1/5

LCM = 10

1*5/2*5 - 1*2/5*2

5/10 - 2/10 = 3/10