NF.1 Lesson

NF.1 Lesson

I can add and subtract fractions and mixed numbers with unlike denominators.

Multiple Select

Which part of the fraction is the denominator?

• 4

• 12

Multiple Select

Which part of the fraction is the numerator?

• 4

• 12

Multiple Select

What is a mixed number?

• A fraction where the numerator is greater than the denominator.

• A number written as a whole number and a fraction.

• An improper fraction.

• A fraction where the denominator is greater than the numerator.

​Adding and Subtracting Fractions with Common Denominators

Multiple Select

Solve.

$$\frac{1}{5}+\frac{3}{5}\ =\ \$$  

• $$\frac{2}{10}$$  

• $$\frac{2}{5}$$  

• $$\frac{3}{5}$$  

• $$\frac{4}{5}$$  

Multiple Select

Solve.

$$\frac{6}{8}-\frac{3}{8}\ =\ \$$  

• $$\frac{9}{8}$$  

• $$\frac{3}{8}$$  

• $$\frac{3}{0}$$  

• $$\frac{2}{8}$$  

Multiple Select

Solve.

$$7\frac{3}{4}+4\frac{1}{4}\ =\ \$$  

• $$11\ \frac{4}{4}$$  

• $$10\frac{3}{4}$$  

• $$11\frac{3}{4}$$  

• $$12$$  

Common Denominators

Open Ended

Find a common denominator.

Open Ended

Find a common denominator.

Multiple Select

What is the least common denominator for the following fractions?

• 48

• 12

• 24

• 18

Multiple Select

What is the least common denominator for the following fractions?

• 21

• 14

• 28

• 30

Multiple Select

What is the least common denominator for the following fractions?

• 24

• 36

• 18

• 12

Adding and Subtracting Fractions

Multiple Select

Part 1: Find the least common denominator.

$$\frac{2}{4}+\frac{3}{8}$$  

• 4

• 8

• 16

• 24

Multiple Select

Part 2: Change the fractions to have the same denominator.

$$\frac{2}{4}+\frac{3}{8}$$  

• $$\frac{5}{8}+\frac{3}{8}$$  

• $$\frac{6}{12}+\frac{4}{12}$$  

• $$\frac{2}{8}+\frac{3}{8}$$  

• $$\frac{4}{8}+\frac{3}{8}$$  

Multiple Select

Part 3: Solve.

$$\frac{4}{8}+\frac{3}{8}$$  

• $$\frac{7}{8}$$  

• $$\frac{6}{8}$$  

• $$\frac{2}{8}$$  

• $$\frac{1}{8}$$  

Multiple Select

Part 1: Find the least common denominator.

$$\frac{2}{3}-\frac{1}{4}$$  

• 4

• 8

• 12

• 24

Multiple Select

Part 2: Change the fractions to have the same denominator.

$$\frac{2}{3}-\frac{1}{4}$$  

• $$\frac{8}{12}-\frac{3}{12}$$  

• $$\frac{7}{12}-\frac{3}{12}$$  

• $$\frac{3}{12}-\frac{8}{12}$$  

• $$\frac{6}{12}-\frac{2}{12}$$  

Multiple Select

Part 3: Solve.

$$\frac{8}{12}-\frac{3}{12}$$  

• $$\frac{5}{12}$$  

• $$\frac{11}{12}$$  

• $$\frac{6}{12}$$  

• $$\frac{3}{12}$$  

Multiple Select

Solve.

• $$\frac{4}{10}$$  

• $$\frac{4}{12}$$  

• $$\frac{8}{12}$$  

• $$\frac{9}{12}$$  

Multiple Select

Solve.

• $$2\ \frac{2}{9}$$  

• $$3$$  

• $$3\ \frac{2}{9}$$  

• $$2\ \frac{8}{9}$$  

Open Ended

Think It Through:

IF A ROOSTER LAID AN EGG ON A ROOF, WHICH WAY WOULD IT ROLL?