Question

evaluate 2/5+3/7 answer​

Answer 1

step 1 :

by cross multiplication ;

2/5+3/7 = 2*7+5*3/5*7

=14+15/35

ANS =29/35

step 2 :

by LCM; LCM of 5&7 = 35(denominator)

2/5 = 2/5*7/7

= 14/35

3/7 = 3/7*5/5

= 15/35

therefore; add the both answer

= 14/35+15/35

ANS=29/35

THANK YOU