Question

Mark and Aly were selling slices of pizza for a school event. Mark had

2 1/3 of a pizza pie left over. Aly had
1 5/ 9 left. Together, how much pizza did Mark and Aly have left?

Answer 1

Mark and Aly have left 35/9 or
`3(8)/(9)` pizza.

Explanation:

Mark's pizza leftover = 2 1/3

`\mathrm{Convert\:mixed\:numbers\:to\:improper\:fraction:}\:a(b)/(c)=(a\cdot \:c+b)/(c)`

`2(1)/(3)=(2\cdot 3+1)/(3)=(7)/(3)`

Aly's pizza leftover = 1 5/9

`\mathrm{Convert\:mixed\:numbers\:to\:improper\:fraction:}\:a(b)/(c)=(a\cdot \:c+b)/(c)`

`1(5)/(9)=(1\cdot 9+5)/(9)=(14)/(9)`

The combined leftover pizza of Mark and Aly can be determined by adding the leftover of both pizza

i.e.

`(7)/(3)+(14)/(9)`

`=(21)/(9)+(14)/(9)`

`\mathrm{Apply\:the\:fraction\:rule}:\quad (a)/(c)+(b)/(c)=(a+b)/(c)`

`=(21+14)/(9)`

`=(35)/(9)` or
`3(8)/(9)`

Thus, Mark and Aly have left 35/9 or
`3(8)/(9)` pizza.