Let the numerator be x and denominator be y
original fraction = x/y
numerator decreased by 50% = 0.5x
denominator decreased by 25% = 0.y75
new fraction = 0.5x/0.75y = 2/3 (x/y)
new fraction is 2/3 of the original fraction. It decreased by 1/3
1/3 x 100 = 33%
Percentage decreased = 33%
