Section 1
Adding and Subtracting Fractions with Like Units
Property
To add or subtract fractions with the same denominator (like units), add or subtract the numerators and keep the denominator the same.
In this Grade 4 Eureka Math lesson from Chapter 24, students use visual models such as area models and number lines to add and subtract two fractions with the same units, building on their understanding of equivalent fractions and common denominators. Students practice counting by equivalent fractions, comparing fractions using area models, and applying fraction operations to real-world problems.
Section 1
Adding and Subtracting Fractions with Like Units
To add or subtract fractions with the same denominator (like units), add or subtract the numerators and keep the denominator the same.
Section 2
Adding or Subtracting Fractions with Like Denominators on a Number Line
To add or subtract fractions with like units on a number line, first partition the line according to the denominator.
For addition, start at the first fraction and move to the right (forward).
For subtraction, start at the first fraction and move to the left (backward).
Section 3
Subtracting Fractions from Mixed Numbers
To subtract a fraction from a mixed number with the same denominator, first convert the mixed number into an improper fraction.
Then, subtract the numerators.
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Section 1
Adding and Subtracting Fractions with Like Units
To add or subtract fractions with the same denominator (like units), add or subtract the numerators and keep the denominator the same.
Section 2
Adding or Subtracting Fractions with Like Denominators on a Number Line
To add or subtract fractions with like units on a number line, first partition the line according to the denominator.
For addition, start at the first fraction and move to the right (forward).
For subtraction, start at the first fraction and move to the left (backward).
Section 3
Subtracting Fractions from Mixed Numbers
To subtract a fraction from a mixed number with the same denominator, first convert the mixed number into an improper fraction.
Then, subtract the numerators.
Book overview
Jump across lessons in the current chapter without opening the full course modal.
Continue this chapter