Adding and Subtracting Fractions
10th Grade · Math · 45 min
Lesson Preview
Learning Objective
I can add and subtract fractions with unlike denominators.
- 1
When adding or subtracting fractions with the same denominator, the denominator stays the same and you add or subtract the numerators.
- 2
To add or subtract fractions with different denominators, you must first find a common denominator by using multiplication.
- 3
When you change the denominator of a fraction, you must also change the numerator by multiplying it by the same number.
