
Adding and Subtracting Fractions
10th Grade · Math · 20 min
Lesson Preview
Learning Objective
I can add and subtract fractions with unlike denominators, including simplifying the result.
- 1
When adding or subtracting fractions, the denominators have to be the same, so you’re working with pieces that are the same size.
- 2
To find a common denominator, list multiples of each denominator to find one they have in common, then create equivalent fractions.
- 3
Always record your answers in simplest form by dividing the numerator and denominator by their greatest common factor.


