Frank ate 12 pieces of pizza and dave ate 15 pieces. “i ate
one fourths more,” said dave. “i ate one fifths less," said frank. who was
right?

Frank

Step-by-step explanation:

So If Dave ate ¼ more than Frank, you would need to divide the denominator by the amount of pizzas, so if 12÷4 is 3 he ate three more pizzas than Frank. If we do the same for Frank, ⅕ or 15÷5=3

So the correct answer would be Frank because 12 is less than 15

My apologies if this wasnt explained very well

for the points! : )