3/5+1/3
common denominator is 15 ( just think about the 3 times table and 5 times table )
5*3=15
3*5=15
Multiply the denominator and numerator by 3 for 3/5
Multiply the denominator and numerator by 5 for 1/3
(3)(3)/(5)(3) +(1)(5)/3(5)
9/15+5/15= 14/15
Answer : 14/15