Question

If a certain number is added both to the numerator and to the denominator of 9/17,the new fraction reduces to 5/7.Find the number. ​

Answer 1

Answer:

11

Step-by-step explanation:

Lets us take the certain number as x

therefore according to the condition,

9+x/17+x=5/7

crossmultiplying

7(9+x)=5(17+x)

63+7x=85+5x

63+7x-5x=85

63+2x=85

2x=85-63

2x=22

x=22/2

x=11