Question

add 2/3 + 3/5 + 5/7​

Answer 1

so let is take the L.C.M. of the denomination and make a common denominator

$\frac{70 + 63 + 75}{105}$

$\frac{208}{105}$

Answer 2

2/3+3/5+5/7= LCM of 3,5&7 = 105

so now , 208/105

hope this will help you ....