Answer:
Total wrapping papers Serena and her grandmother = 51/10
Step-by-step explanation:
Serena's wrapping paper for parents:
Grandmother's wrapping paper:
In order to determine the combined wrapping papers for both Serena and grandmother, all we need is to add both.
i.e.
Total papers = Serena's wrapping paper + Grandmother's wrapping paper
[tex]=\frac{18}{5}+\frac{3}{2}[/tex]
[tex]=\frac{36}{10}+\frac{15}{10}[/tex]
[tex]\mathrm{Apply\:the\:fraction\:rule}:\quad \frac{a}{c}+\frac{b}{c}=\frac{a+b}{c}[/tex]
[tex]=\frac{36+15}{10}[/tex]
[tex]=\frac{51}{10}[/tex]
Therefore, total wrapping papers Serena and her grandmother = 51/10