Question: how do you add fractions with different bottom numbers?
Answer: The bottom numbers (the denominators) are already the same. Go straight to step 2.
Add the top numbers and put the answer over the same denominator:
Simplify the fraction:
Step 1: The bottom numbers are different. ... 
Step 2: Add the top numbers and put them over the same denominator:
Step 3: Simplify the fraction: