SOLUTION: The same number is added to both the numerator and the denominator of the fraction 3/5, and the result is 4/5. Find the number.

Algebra ->  Percentage-and-ratio-word-problems -> SOLUTION: The same number is added to both the numerator and the denominator of the fraction 3/5, and the result is 4/5. Find the number.       Log On


   

Question 670812: The same number is added to both the numerator and the denominator of the fraction 3/5, and the result is 4/5. Find the number.
Answer by swincher4391(1107) About Me  (Show Source):
You can put this solution on YOUR website!
Let the same number be x. Then:
%283%2Bx%29%2F%285%2Bx%29+=+4%2F5
4%285%2Bx%29+=+5%283%2Bx%29
20+%2B+4x+=+15+%2B+5x
x+=+5