Question

Evaluate {( 3/8) + (5/6)] - {(4/5) + (7/8)}

Answer 1

(3/8+5/6) - (4/5+7/8)
=3/8+5/6-4/5-7/8
=3/8-7/8+5/6-4/5 here rearranged the terms
=(3-7)/8 +5/6-4/5 lcm of first two terms is 8
=-4/8+5/6-4/5
=-1/2+5/6-4/5
=(-15+25-24)/30 lcm of three terms 30
=-14/30
=-7/15

Answer 2

=(3/8+5/6)-(4/5+7/8)

=29/24-67/40

=-7/15