9514 1404 393
Answer:
-50%
Step-by-step explanation:
Suppose the fraction is f = p/q before any changes.
Decreasing the numerator by 60% multiplies it by (1 -0.60) = 0.4.
Decreasing the denominator by 20% multiplies it by (1 -0.20) = 0.8.
Then the new fraction is ...
f' = p(0.4)/(q(0.8)) = (p/q)(0.4/0.8) = f(0.5) = f(1 -0.50) = f(1 +(-50%))
The increase in the value of the fraction is -50%.
