Posted by **Brandon** on Thursday, August 11, 2011 at 9:31pm.

What number must be added to the numerator and denominator of the fraction 7/19 to make the resulting fraction qual to 3/4?

- Algebra -
**Ms. Sue**, Thursday, August 11, 2011 at 9:35pm
3/4 = 15/20

- Algebra -
**Henry**, Friday, August 12, 2011 at 6:18pm
(7+x) / (19+x) = 3/4,

Cross multiply:

28 + 4x = 57 + 3x,

4x - 3x = 57 - 28,

X = 29.

Check: (7+29)/(19+29) = 36/48 = 3/4.

## Answer this Question

## Related Questions

- algebra - The denominator of a fraction is 12 more than the numerator. If 16 is ...
- Math-Algebra - The numerator of a fraction is 3 less than the denominator. If 5 ...
- Algebra - The numberator of a fraction exceeds the denominator by 3. If 3 is ...
- Algebra - What number must be added to both the numerator and denominator by 3...
- algebra - The numerator of a fraction is 7 less than the denominator if three is...
- algebra - The numerator of a certain fraction is four times the denominator. If ...
- Algebra - The numerator of a fraction exceeds the denominator. If 3 is added to...
- Algebra - When nine is added to both the numerator and the denominator of an ...
- math 102 - what number multiplied by the numerator and added to the denominator ...
- Algebra - The numerator of a certain fraction is 3 times the denominator. If the...