Question

if a certain number is added both to the numerator and to the denominator of 9/17, the new fraction reduce to 5/7.find the number?​

Answer 1

Answer:11

Step-by-step explanation:

Lets suppose that the number is x. So,

9+x/17+x=5/7

Cross multiply. Then,

7x+63=5x+85

7x-5x=85-63

2x=22

x=22/2

x=11.

Check=9+11/17+11

         =20/28

Divide by 2.

         =10/14

         =5/7