Answer:
Mark and Aly have left 35/9 or [tex]3\frac{8}{9}[/tex] pizza.
Step-by-step explanation:
Mark's pizza leftover = 2 1/3
[tex]\mathrm{Convert\:mixed\:numbers\:to\:improper\:fraction:}\:a\frac{b}{c}=\frac{a\cdot \:c+b}{c}[/tex]
[tex]2\frac{1}{3}=\frac{2\cdot 3+1}{3}=\frac{7}{3}[/tex]
Aly's pizza leftover = 1 5/9
[tex]\mathrm{Convert\:mixed\:numbers\:to\:improper\:fraction:}\:a\frac{b}{c}=\frac{a\cdot \:c+b}{c}[/tex]
[tex]1\frac{5}{9}=\frac{1\cdot 9+5}{9}=\frac{14}{9}[/tex]
The combined leftover pizza of Mark and Aly can be determined by adding the leftover of both pizza
i.e.
[tex]\frac{7}{3}+\frac{14}{9}[/tex]
[tex]=\frac{21}{9}+\frac{14}{9}[/tex]
[tex]\mathrm{Apply\:the\:fraction\:rule}:\quad \frac{a}{c}+\frac{b}{c}=\frac{a+b}{c}[/tex]
[tex]=\frac{21+14}{9}[/tex]
[tex]=\frac{35}{9}[/tex] or [tex]3\frac{8}{9}[/tex]
Thus, Mark and Aly have left 35/9 or [tex]3\frac{8}{9}[/tex] pizza.
