Answer:
Total wrapping papers Serena and her grandmother = 51/10
Explanation:
Serena's wrapping paper for parents:
sq meters
Grandmother's wrapping paper:
sq meters
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
![=(18)/(5)+(3)/(2)](https://img.qammunity.org/2021/formulas/mathematics/high-school/glwckpbccjq16a15u0uum0l5lzlq9i6e9p.png)
![=(36)/(10)+(15)/(10)](https://img.qammunity.org/2021/formulas/mathematics/high-school/xwplrdtmymsfpmik3h3ks37vovdlf98gou.png)
![\mathrm{Apply\:the\:fraction\:rule}:\quad (a)/(c)+(b)/(c)=(a+b)/(c)](https://img.qammunity.org/2021/formulas/mathematics/high-school/6033l90a58frijddg5csneao1mwam7nt8s.png)
![=(36+15)/(10)](https://img.qammunity.org/2021/formulas/mathematics/high-school/umvi44qj9lm6hih790yw471em8xbjbv70a.png)
![=(51)/(10)](https://img.qammunity.org/2021/formulas/mathematics/high-school/aauwaqw593jvxn91e224x2w2qhr4u6ljq3.png)
Therefore, total wrapping papers Serena and her grandmother = 51/10