Question

when a certain number is added to 9/17 the fraction obtained is 5/7 so tell what should be added 9/17 to get 5/7 pls answer I have my paper tomorrow

Answer 1

Let the number added be x.

So, according to question,

x + 9/17 = 5/7

so,

x = 5/7 - 9/17

x = (5×17 - 9×7) / 7×17

x = (85 - 63) / 119

.

. . x = 22 / 119

Answer 2

Answer:

The required number is 11

Step-by-step explanation:

Given: If a certain number is added both to the numerator and denominator of 9/17 the new fraction reduces to 5/7

Find:the number ?

Solution:let the number be x

According to question:

9+x/17+x=5/7

Cross multiply,

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

63+7x= 85+5x

7x-5x=85-63

2x=22

x=22/2

x=11

Therefore the required number is 11