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4th Grade Math
Number and Operations
11. TX.4.3.E
11.2 Subtracting fractions with like denominators
Subtracting Fractions with Like Denominators
When fractions share a denominator, subtract the numerators and keep the denominator, then simplify.
What You'll Learn
Like denominators means the fractions share the same bottom number.
Subtract the numerators and keep the denominator the same.
For example, 5/8 minus 2/8 equals 3/8.
Simplify the result when the numerator and denominator share a factor.
If the denominators differ, first rewrite them with a common denominator.
What You'll Practice
1
Subtracting simple fractions with common denominators and simplifying answers
2
Working with larger two-digit and three-digit fractions requiring borrowing
3
Solving word problems involving fraction subtraction in real-world contexts
4
Subtracting multiple fractions in sequence (three or more fractions)
5
Using factor trees to break down numbers and reduce fractions to lowest terms
Why This Matters
Subtracting fractions with like denominators is essential for solving real-world problems involving measurements, recipes, and budgeting. Mastering this skill builds your foundation for working with unlike denominators, algebraic fractions, and complex equations in higher math.
Before You Start — Make Sure You Can:
This Unit Includes
11 Video lessons
Practice exercises
Learning resources
Skills
Fraction Subtraction
Like Denominators
GCF
Simplifying Fractions
Number Lines
Factor Trees
Negative Numbers
TX Curriculum Aligned