Question

What is the total pizza eaten by Alex and his sister, if Alex ate ${\frac{2}{3}}^{rd}$ of his pizza and his sister ate ${\frac{3}{4}}^{th}$ of her pizza?

Answer 1

Solution:
Fraction of pizza eaten by Alex = $\frac{2}{3}$
Fraction of pizza eaten by Alex’s sister = $\frac{3}{4}$
Total pizza eaten by both of them = $\frac{2}{3}$ + $\frac{3}{4}$
= $\frac{(2\times 4)+(3\times 3)}{3\times 4}$
= $\frac{17}{12}$ = 1$\frac{5}{12}$.