Subtracting Fractions with Different Denominators
8th Grade · Math · 60 min· Nsc Jamaica
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Learning Objective
I can subtract fractions with unlike denominators by finding a common denominator.
- 1
When subtracting fractions with unlike denominators, you must first find a common denominator by finding the least common multiple between the denominators.
- 2
To rename a fraction, multiply both the numerator and the denominator by the same number to get an equivalent fraction with the common denominator.
- 3
After subtracting the numerators, always check to see if the answer can be simplified by dividing the numerator and denominator by their greatest common factor.
