Subtract Fractions: Learn
How to Subtract Fractions with different denominators:
- Rename the fractions using their Least Common Denominator (LCD)
- Subtract the numerators of the fractions
- Simplify the Fraction
Example: Subtract 3/12 - 2/9. The LCD is 36, so we can rename and subtract them them as follows:
3 * 3
12 * 3
2 * 4
9 * 4
In this case, the fraction does not simplify, so 17/36 is the final answer.
Subtract Fractions: Practice
Subtract the fractions.
State the answer as a simplified fraction, and not a mixed number.
Press the Start Button To Begin
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Math Lessons by Grade
- Estimation and Mental Math
- Naming Numbers
- Percents and Ratios
- Place Value