Adding Fractions!

$$1\ \frac{2}{5}+\frac{3}{5}=$$  

Haazim rated us as $$\frac{10}{10}$$  for good teachers,while Dean rated us $$\frac{7}{10}$$  ,and Ali the least generous rated us $$\frac{3}{10}$$  . How much is our overall rating.

$$1\ \frac{9}{11}+\frac{2}{11}+3$$  

$$1\ \frac{1}{2}+\frac{8}{12}$$  

$$\frac{6}{11}+\frac{10}{11}$$  

$$\frac{6}{12}+\frac{3}{4}$$  

$$6\ \frac{3}{4}+7\ \frac{1}{2}$$  

$$3\ \frac{2}{6}+4\ \frac{3}{6}+7\ \frac{4}{6}=15\ \frac{1}{2}$$  

$$5\ \frac{4}{12}+6\ \frac{1}{3}+9\ \frac{3}{9}$$  

$$36\ \frac{3}{4}+7\ \frac{1}{2}$$