How to Add Fractions with Different Denominators
The 4-step method using the Least Common Denominator (LCD):
STEP 01
Find the LCD
Find the Least Common Denominator of both bottom numbers.
STEP 02
Convert Numerators
Scale each numerator by (LCD / denominator).
STEP 03
Add Numerators
Add the top numerators together while keeping the LCD on the bottom.
STEP 04
Reduce to Lowest Terms
Divide by GCD and convert to mixed number if improper.