# Math Help - Numerator and denominator

1. ## Numerator and denominator

1)What no. should be subtracted from both numerator and denominator of the fraction 29/37 to make it equal to 5/7 ?

Solution

I think 4 should be subtracted from numerator but if 4 is subtracted from 37 it will not give answer as 7 after cutting.

2)After spending 5/8 of money on marketing, a lady had $10.50 left. How much she had at the start ? Solution 10.50*(8/5)=$16.8 right ?

2. ## Re: Numerator and denominator

Originally Posted by haftakhan
1)What no. should be subtracted from both numerator and denominator of the fraction 29/37 to make it equal to 5/7 ?
Solve $\frac{29-x}{37-x}=\frac{5}{7}~.$

3. ## Re: Numerator and denominator

2)After spending 5/8 of money on marketing, a lady had $10.50 left. How much she had at the start ? Solution 10.50*(8/5)=$16.8 right ? ..... No
If she's spend $\frac58$ of her money then the rest would be $\frac38$ of her money:
$\frac38 \cdot m = \10.5$