Which equivalent fraction would you have to use in order to add 3/5 to 21/25

Answer 1

convert to common denominator

least commmon multiple of 5 and 25 is 25

so we want the fraction 3/5 to convert into the form x/25

so, 3/5 = x/25

we can cross multiply to get 5x = 25*3

x = 5*3

x= 15

So the fraction would be 15/25

Optional: adding 15/25 to 21/25 = 36/25 or 1 11/25

Answer 2

3/5 to 21/25

Answer 3

idk I just want to know the answer