Learn on PengiEureka Math, Grade 5Chapter 17: Making Like Units Numerically

Lesson 5: Subtract fractions greater than or equal to 1.

In this Grade 5 Eureka Math lesson from Chapter 17: Making Like Units Numerically, students learn to subtract mixed numbers and fractions greater than or equal to 1 by finding common denominators and converting to like units. Students practice applying this skill through real-world word problems involving distances and time, using number lines and tape diagrams as visual supports. The lesson builds fluency with unlike-unit subtraction and prepares students to solve multi-step problems requiring regrouping with fractions.

Section 1

Subtracting Mixed Numbers on a Number Line

Property

To subtract mixed numbers on a number line, start at the first number (minuend) and move to the left by the value of the second number (subtrahend).
The final position on the number line represents the difference.

Examples

Lesson overview

Expand to review the lesson summary and core properties.

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Section 1

Subtracting Mixed Numbers on a Number Line

Property

To subtract mixed numbers on a number line, start at the first number (minuend) and move to the left by the value of the second number (subtrahend).
The final position on the number line represents the difference.

Examples