Summary: Adding and Subtracting Fractions With Common Denominators
Key Concepts
- Fraction Addition
- If [latex]a,b[/latex], and [latex]c[/latex] are numbers where [latex]c\ne 0[/latex] , then [latex]\frac{a}{c}+\frac{b}{c}=\frac{a+c}{c}[/latex] .
- To add fractions, add the numerators and place the sum over the common denominator.
- Fraction Subtraction
- If [latex]a,b[/latex], and [latex]c[/latex] are numbers where [latex]c\ne 0[/latex] , then [latex]\frac{a}{c}-\frac{b}{c}=\frac{a-c}{c}[/latex] .
- To subtract fractions, subtract the numerators and place the difference over the common denominator.
Licenses & Attributions
CC licensed content, Specific attribution
- Prealgebra. Provided by: OpenStax License: CC BY: Attribution. License terms: Download for free at http://cnx.org/contents/[email protected].