Adding Fractions
Learning Objective
I can add fractions with unlike denominators.
Key Concepts
When adding fractions with unlike denominators, the first step is to find a common denominator by determining the least common multiple between the denominators.
After finding the common denominator, you must rename the fractions to have the common denominator, being sure to multiply both the numerator and denominator by the same number to maintain equivalence.
Once the fractions have the same denominator, you can add the numerators and keep the denominator the same; then, check to see if the answer can be simplified.
Practice Questions
This lesson includes 3 practice questions to reinforce learning.
View questions preview
1. What is the first step in adding fractions with unlike denominators?
2. Explain how to rename a fraction once you have found the common denominator.
3. Solve: 2/5 + 1/10
Educational Video
Adding Fractions with Unlike Denominators | Math with Mr. J
Math with Mr. J