Question

Astrid bought pizza for a play date she ate
`(1)/(8)`of the pizza and her friend ate
`(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.

`(1)/(8)+(1)/(2)`

We use the following property to sum.

`(a)/(b)+(c)/(d)=(a\cdot d+b\cdot c)/(b\cdot d)`
`(1\cdot2+1\cdot8)/(8\cdot2)=(2+8)/(16)=(10)/(16)=(5)/(8)`

Therefore, they ate 5/8 of the pizza.