In this Grade 5 lesson from enVision Mathematics Chapter 7, students learn how to subtract fractions with unlike denominators by finding a common multiple, renaming fractions as equivalent fractions with a common denominator, and then subtracting the numerators. The lesson uses the Identity Property to rewrite fractions such as 2/3 and 1/4 as equivalent fractions with a denominator of 12 before subtracting. Practice problems progress from guided examples to independent and real-world problem-solving applications.
Section 1
Subtracting Fractions by Rewriting with Common Denominators
To subtract fractions with unlike denominators, they must first be rewritten as equivalent fractions with a common denominator.
Once the fractions have like denominators, subtract the numerators and keep the denominator the same.
Book overview
Jump across lessons in the current chapter without opening the full course modal.
Continue this chapter
Expand to review the lesson summary and core properties.
Section 1
Subtracting Fractions by Rewriting with Common Denominators
To subtract fractions with unlike denominators, they must first be rewritten as equivalent fractions with a common denominator.
Once the fractions have like denominators, subtract the numerators and keep the denominator the same.
Book overview
Jump across lessons in the current chapter without opening the full course modal.
Continue this chapter