5.NF.A.2

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- 5.NF.A.1Add and subtract fractions with unlike denominators (including mixed numbers) by replacing given fractions with equivalent fractions in such a way as to produce an equivalent sum or difference of fractions with like denominators. For example, 2/3 + 5/4 = 8/12 + 15/12 = 23/12. (In general, a/b + c/d = (ad + bc)/bd.)
- 5.NF.A.2Solve word problems involving addition and subtraction of fractions referring to the same whole, including cases of unlike denominators, e.g., by using visual fraction models or equations to represent the problem. Use benchmark fractions and number sense of fractions to estimate mentally and assess the reasonableness of answers. For example, recognize an incorrect result 2/5 + 1/2 = 3/7 by observing that 3/7 < 1/2.

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## 5.NF.A.2

## Solve word problems involving addition and subtraction of fractions referring to the same whole, including cases of unlike denominators, e.g., by using visual fraction models or equations to represent the problem. Use benchmark fractions and number sense of fractions to estimate mentally and assess the reasonableness of answers. For example, recognize an incorrect result 2/5 + 1/2 = 3/7 by observing that 3/7 < 1/2.

37 Lesson(s)

### Problem Solving (Different Operations with Fractions)

5th Grade Math »
Unit: Multiplying and Dividing Fractions

5th Grade Math »
Unit: Multiplying and Dividing Fractions

### Fractions: Reviewing the Basics

5th Grade Math »
Unit: Adding and Subtracting Fractions

5th Grade Math »
Unit: Adding and Subtracting Fractions

### Adding and Subtracting Fractions Day 1

6th Grade Math »
Unit: Fraction Operations

6th Grade Math »
Unit: Fraction Operations

Big Idea:

#### If Ashley ate ½ pizza, Tatyana ate 1/3 of a pizza, and Tiffany ate 5/8 of a pizza, how much pizza did they eat altogether? What’s the smallest number of pizzas they ordered? How much was left? Students work to develop strategies for adding and subtracti

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(44)

Resources
(20)

### What Fraction of the Section Does Each Person Own?

6th Grade Math »
Unit: Fraction Operations

6th Grade Math »
Unit: Fraction Operations

### Adding and Subtracting Fractions Day 2

6th Grade Math »
Unit: Fraction Operations

6th Grade Math »
Unit: Fraction Operations

### Looking for Patterns + Show What You Know

6th Grade Math »
Unit: Fraction Operations

6th Grade Math »
Unit: Fraction Operations

Big Idea:

#### How would you solve 3 ¼ - 1 5/6? What do students understand? What gaps do they have in their understanding? Students continue looking for patterns when they are adding and subtracting fractions and then they take a quiz.

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Resources
(12)

### Using Number Lines to Discover Benchmark Fractions

5th Grade Math »
Unit: Adding and Subtracting Fractions

5th Grade Math »
Unit: Adding and Subtracting Fractions

### Adding & Subtracting Fractions with Unlike Denominators (Centers)

5th Grade Math »
Unit: Adding and Subtracting Fractions

5th Grade Math »
Unit: Adding and Subtracting Fractions

### Why Fractions

5th Grade Math »
Unit: Adding and Subtracting Fractions

5th Grade Math »
Unit: Adding and Subtracting Fractions

### Adding/Subtracting Fractions Game

5th Grade Math »
Unit: Adding and Subtracting Fractions

5th Grade Math »
Unit: Adding and Subtracting Fractions

### Pattern Block Fractions

5th Grade Math »
Unit: Adding and Subtracting Fractions

5th Grade Math »
Unit: Adding and Subtracting Fractions

### Adding & Subtracting Mixed Numbers (Practice - Problem Solving)

5th Grade Math »
Unit: Adding and Subtracting Mixed Numbers

5th Grade Math »
Unit: Adding and Subtracting Mixed Numbers

Common Core Math

### Kindergarten

### First Grade

### Second Grade

### Third Grade

### Fourth Grade

### Fifth Grade

### Sixth Grade

### Seventh Grade

### HS Number & Quantity

### HS Algebra

### HS Functions

### HS Geometry

### Kindergarten

### First Grade

### Second Grade

### Third Grade

### Fourth Grade

### Fifth Grade

### Sixth Grade

### Seventh Grade

### Eighth Grade

### Ninth and Tenth Grade

### Kindergarten

### First grade

### Second grade

### Third Grade

### Fourth grade

### Fifth grade

### Middle School

Kindergarten

First Grade

Second Grade

Third Grade

Fourth Grade

Fifth Grade

Sixth Grade

Seventh Grade

HS Number & Quantity

HS Algebra

HS Functions

HS Geometry

Kindergarten

First Grade

Second Grade

Third Grade

Fourth Grade

Fifth Grade

Sixth Grade

Seventh Grade

Eighth Grade

Ninth and Tenth Grade

Kindergarten

First grade

Second grade

Third Grade

Fourth grade

Fifth grade

Middle School