pls help me plssssssssssssssss brainlist if possible

Answer:
3 1/12
Step-by-step explanation:
8+5=13
13-12=1
***the numbers I just subtracted would give you a whole so add it with the other whole numbers
Ex. 1+1=2+1
***so that now gives you 3 1/12
!!!NEVER CHANGE THE DENOMINATOR UNLESS THEY'RE ARE TWO DIFF DENOMINATORS!!!