Question 1189945: The same number is added to both the deminator and the number of a fraction 7/17,the fraction then becomes 6/11.fine the number added Answer by greenestamps(13203) (Show Source):
(2) Using logical reasoning and simple mental arithmetic....
The difference between the numerator and denominator in the given fraction 7/17 is 10. When the same number is added to both numerator and denominator, that difference stays the same.
So we need to find a fraction equivalent to 6/11 in which the difference between the numerator and denominator is 10.
The difference between the numerator and denominator in the fraction 6/11 is 5; if we double the numerator and denominator, the difference will be 10, as we need. So
