Question

Astrid bought pizza for a play date she ate $\frac{1}{8}$of the pizza and her friend ate $\frac{1}{2}$of the pizza how much of the pizza was eaten by Astrid and her friend

Answer 1

We know that

• Astrid ate 1/8 of the pizza.

,

• Her friend ate 1/2 of the pizza.

To find the total pizza eaten by them, we have to sum those fractions.

$\frac{1}{8}+\frac{1}{2}$

We use the following property to sum.

$\frac{a}{b}+\frac{c}{d}=\frac{a\cdot d+b\cdot c}{b\cdot d}$$\frac{1\cdot2+1\cdot8}{8\cdot2}=\frac{2+8}{16}=\frac{10}{16}=\frac{5}{8}$

Therefore, they ate 5/8 of the pizza.