Question

Q.14. Subtract:
(i) 2/7 from 19/21
(ii) 21/25 from 18/20​

Answer 1

Answer:

i)13/21

ii)3/50

Step-by-step explanation:

i)19/21-2/7

=19×1/21×1 - 2×3/7×3

=19/21- 6/21

=(19-6)/21

=13/21

ii)18/20-21/25

=(18×5/20×5) -(21×4/25×4)

=(90-84)/100

=6/100=3/50