Question

who to plus fractions with different denomenator

Answer 1

eg: take a number 3/4 and 3/5
take Lcm u will get 20
3/4 multiply 5 by numerator and denominator too.
3*5/4*5 =15/20
same u will do with 3/5
3*4/5*4=12/20
ten add both of them
15+12/20
=27/20