# math

posted by .

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

• math -

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

• math -

3/5 to 21/25

## Similar Questions

I still do not understand this problem? find a number such that when added to the numerator and denominator of 2/11 yields a fraction equivalent to 1/2?
2. ### maths

FIND A FRACTION SUCH THAT: IF YOU ADD 2 TO THE NUMERATOR, IT BECOMES EQUIVALENT TO 0.5; AND IF YOU ADD 4 TO THE DENOMINATOR, IT BECOMES EQUIVALENT TO 0.1.
3. ### Computer science

1.Fraction that has a numerator and a denominator. The class should have methods that can: (a) add and subtract two Fractions together and return the resulting Fraction, (b) create a duplicate of itself and return the duplicate, (c) …
4. ### Math

you have four \$5.00 bills. You buy a shirt for \$10.00 What fraction of money do you have left. Use equivalent fraction.
5. ### Math

you have four \$5.00 bills. You buy a shirt for \$10.00 What fraction of money do you have left. Use equivalent fraction.
6. ### math

Howard made cards for the fractions 3/9,4/8, 1/7, 6/5,and 3/10. He set them out in a row, putting 1/7 first.The fraction equivalent to 1/2 went after the one equivalent to a mixed number. A fraction that is half of 3/5 went between …
7. ### math

Howard made cards for the fractions 3/9,4/8, 1/7, 6/5,and 3/10. He set them out in a row, putting 1/7 first.The fraction equivalent to 1/2 went after the one equivalent to a mixed number. A fraction that is half of 3/5 went between …
8. ### Math

Which equivalent fraction would you have use in order to make 3/5 to 21/25?
9. ### Math (and note to DAMON)

1. 0.24% as a decimal? Is it 0.0024? 2. 135% as a decimal?
10. ### math

What process would you use to convert a fraction to a lb. Would you take the fraction say 4/8 and make the pound 1/16 then add them together to get the total amount?

More Similar Questions