Adding and Subtracting Fractions with Like Denominators

Add and Subtract Fractions with like Denominators AND Mixed Numbers

By Elizabeth Hewett

Add or subtract the numerators! aka: the top part of the fraction.

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Leave the denominators alone (unless it is a 10 or 100...then you know what to do!).

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Draw

Draw a fraction problem with like denominators...it can be an addition problem or a subtraction problem.

Now let's practice!

If you're reading this thank a teacher :)

Multiple Choice

1/2 + 1/2

• 1/4

• 2/4

• 1 Whole

Multiple Choice

3/8 + 2/8

• 5/8
• 1/8
• 5/16

Multiple Choice

6/12 - 3/12

• 9/12

• 3/12

• 8/12

Multiple Choice

6/10 - 5/10

• 1/10
• 1/20

Multiple Choice

The top number is called the ___________.

• denominator
• numerator

Multiple Choice

5/6 + 1/6

• 6/12
• 6/6 or 1

Multiple Choice

Allie bought a pizza that had 10 equal slices. Her friends ate 7/10 of the pizza and she ate 2/10 of the pizza. What fraction of the pizza was eaten in all?

• 5/10

• 9/10

• 1/10

• 9/20

Multiple Choice

Sam walked 1/12 of a mile to Toni's house. Then Toni and Sam walked 4/12 of a mile to school. How far did Sam walk in all?

• 5/12

• 1/4

• 5/24

• 3/12

Multiple Choice

Tim had 10/12 of a green streamer for a bulletin board. He used 5/12 roll for the border. What fraction of the roll of green streamer does Tim have left?

• 1 3/12

• 5/12

• 5/0

• 15/12

Multiple Choice

Kelly had a Hershey chocolate bar. She broke the bar into 5 pieces. Her friend Grace ate 2/5 of the bar. Her friend Kayla ate 1/5 of the same bar. How much of the bar was left for Kelly to eat?

• 3/5

• 2/5

• 3/10

• 1/5

Multiple Choice

Ashley spent 2/6 of an hour reading a book and 1/6 of an hour studying for her math test. How long did Ashley spend reading and studying her math altogether? (*Hint: Simplify)

• 1/2 hour

• 1/6 hour

• 3/12 hour

• 3/6 hour

Mixed numbers are whole numbers MIXED with a fraction! ​

Knowing how to reduce/decompose a fraction really helps here!​

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Good work so far!...Now Mixed Numbers!

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Fill in the Blank

$$2\ \frac{1}{5}+3\ \frac{2}{5}$$  

Multiple Choice

Gideon ran  $$2\frac{4}{5}$$  miles last weekend.  This weekend he ran  $$3\frac{1}{5}$$  miles.  How many miles did he run in all?

• $$1\frac{3}{5}$$  miles

• $$5\frac{5}{10}$$  miles

• $$5\frac{3}{5}$$  miles

• 6 miles

Multiple Choice

$$2\ \frac{3}{5}+3\ \frac{4}{5}$$  

• 1 1/5

• 5 7/10

• 6 2/5

• 6 7/5

Multiple Choice

Tell whether the number sentence is True or False. $$10\frac{2}{5}+5\frac{1}{5}=15\frac{3}{10}$$  

• True

• False

Multiple Choice

$$4\ \frac{2}{3}$$  +  $$2\ \frac{2}{3}$$  = *SIMPLIFY

• $$6\ \frac{4}{6}$$  

• $$2$$  

• $$7\ \frac{1}{3}$$  

• $$7\ \frac{4}{3}$$  

Multiple Choice

9 ¹/₈ - 4 ⁵/₈

• 4 ⁶/₈

• 5 ⁴/₈

• 4 ⁴/₈

• 5 ⁶/₈

Multiple Choice

Mikayla bought $$12\frac{5}{8}$$  yards of fabric.  She used  $$6\frac{7}{8}$$  yards of the fabric for a costume.  How much fabric did Mikayla have left?

• $$5\frac{2}{8}$$  yards

• $$5\frac{6}{8}$$  yards

• $$6\frac{2}{8}$$  yards

• $$19\frac{4}{8}$$  yards

Multiple Choice

Rewrite the improper fraction as a mixed number. $$\frac{17}{9}$$  

• $$1\ \frac{8}{9}$$  

• $$1\ \frac{7}{9}$$  

• $$1\ \frac{2}{3}$$  

• $$1\ \frac{5}{9}$$  

Multiple Choice

Change to an improper fraction.

• $$\frac{1}{15}$$

• $$\frac{15}{15}$$

• $$\frac{16}{15}$$

• $$\frac{17}{15}$$

Multiple Choice

Max ordered 16 pizzas for a party. After the party, there were  $$3\ \frac{5}{8}$$  pizzas left.  How many pizzas were eaten?

• $$12\ \frac{3}{8}$$  

• $$13\ \frac{3}{8}$$  

• $$13\ \frac{5}{8}$$  

• $$19\ \frac{5}{8}$$  

Multiple Choice

• $$\frac{1}{6}$$

• $$1\ \frac{1}{6}$$

• 1

• $$\frac{1}{3}$$

​Division

​Dividing is easy! if you have any problems with it multiply all the answers with the smalles number to get the biggest number

Multiple Select

Is dividing hard for you?

• yes

• No

• sometimes

Multiple Choice

1. 4 ÷ 932

• 232

• 233

• 138

• 344

Multiple Choice

2. 8÷168

• 20

• 19

• 26

• 21

Multiple Choice

3. 7÷777

• 784

• 111

• 235

• 232

Multiple Choice

4.9÷360

• 40

• 21

• 71

• 39

Multiple Choice

5. 6÷828

• 132

• 138

• 145

• 122

Multiple Choice

6. 3÷363

• 564

• 798

• 313

• 121

Multiple Choice

7. 9÷234

• 25

• 28

• 27

• 23

Multiple Choice

8. 5÷355

• 71

• 70

• 68

• 33

Multiple Choice

9.2÷782

• 342

• 356

• 391

• 398