Adding Unlike Fractions
Learning Objective
I can add fractions with different denominators by finding equivalent fractions with a common denominator.
Practice Questions
This lesson includes 7 practice questions to reinforce learning.
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1. Explain why finding a common denominator is essential when adding fractions with different denominators. Use an example to illustrate your explanation.
2. Find the least common multiple (LCM) of 18 and 24. Explain the steps you used, and describe why the LCM is important when adding fractions with these denominators.
3. Rewrite the fraction ⁷/₁₂ as an equivalent fraction with a denominator of 36. Then, explain how you can check if your new fraction is truly equivalent to the original.
...and 4 more questions
Educational Video
How to add fractions that have different denominators | Fractions | Pre-Algebra | Khan Academy
Khan Academy