Objective: I can add and subtract fractions with the unlike denominators.
When adding or subtracting fractions with unlike denominators
Step 1: Find the lowest common denominator
Step 2: Find the equivalent fraction(s).
Step 3: Add or subtract the fractions
Step 4: Simplify the answers
(Think of the lowest common denominator as the smallest multiple that they have in common.)
Read Adding Fractions if you need to learn about adding and subtracting fractions.
4/9 + 2/3 =
Lowest common denominator = 9
Equivalent fractions with common denominator
4/9 = 4/9
2/3 = 6/9
Add the equivalent fractions, simplify the answer
10/9 = 1 1/9
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