Question

A) 2(4/5). - 1(3/10). B). 2(5/7). + 3(1/10). - 2(3/5)

Answer 1

A-2*(4/5)-1(3/10)
=8/5-3/10
=80-15/50
=65/50
=13/10

B-2*(5/7)+3*(1/10)-2*(3/5)
=10/7+3/10-6/5
=100+21/70-6/5
=121/70-6/5
=605-420/350
=585/350
=117/70

hope it helps you