If 6 is added to the numerator and denominator of the fraction 7/9,what will be the value increase or decrease ?by how much ?i need solution answer

new fraction = 13/15

change = 13/15 - 7/9
= ..

if your answer is positive, the value of the fraction increased, if the result is negative, the function decreased.
Try it with another fraction.
What do you think the question is trying to show?