Answer:
it's not
Step-by-step explanation:
if you simplify by making the denominators the same (multiplying 9/12 by 6/6 and 4/6 by 12/12), you'll arrive at 54/72 and 48/78. 54 isn't equal to 48
You can reduce the percentages to fractions:


So, we have


You can say 4? Because the greatest common factor of 12 and 20 is 4