4 Slides • 15 Questions

Adding and Subtracting Fractions

2

EASIEST thing to do is turn mixed numbers into improper fractions first
(makes borrowing and negatives easier)

Mixed numbers

3

Multiple Choice

Turn into improper fraction

1

37/2

2

52/7

3

7/37

4

37/7

4

Multiple Choice

Turn into improper fraction

1

24/4

2

35/4

3

11/3

4

28/3

5

Just add or subtract the numerator

KEEP the denominator

With a common denominator

6

Multiple Choice

$\frac{7}{9}+\frac{5}{9}$

Try this!

1

4/3

2

12/9

3

2/9

4

12/18

7

Multiple Choice

$\frac{11}{14}-\frac{4}{14}$

1

1/2

2

7/0

3

15/14

4

7/14

8

Fill in the Blanks

Type answer...

9

Multiple Choice

Solve the problem

1

$\frac{7}{10}$

2

$\frac{4}{5}$

3

$\frac{3}{10}$

4

$\frac{1}{5}$

10

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

$\frac{8}{5}$ miles

2

$\frac{55}{10}$ miles

3

$\frac{28}{5}$ miles

4

6 miles

5

$\frac{30}{5}$ miles

11

Fill in the Blanks

Type answer...

12

Adding fractions with different denominators

Multiply the denominators (to get a common denominator - QCD)
Multiply the numerator of the first fraction by the opposite denominator
Multiply the numerator of the second fraction by the opposite denominator
Add or subtract the new "numerators"

13

Multiple Choice

Is this a correct answer?

1

Yes, the student correctly added.

2

No, you cannot add unlike denominators

3

No, 5 + 7 is not 12

4

No, 2 + 3 is not 5

14

Multiple Choice

Subtract and simplify if you can.
2/4 - 3/8

1

1/8

2

1/4

3

4/32

4

28/32

15

Fill in the Blanks

16

Fill in the Blanks

17

Multiple Choice

Solve the problem

1

6

2

61/12

3

59/12

4

71/12

18

Multiple Choice

Malique bakes 4 whole pies for Thanksgiving. After dessert is finished, she has $2\ \frac{1}{4}$ pie left. How much pie did her family eat?

1

$\frac{9}{4}$

2

$\frac{7}{4}$

3

$\frac{11}{4}$

4

$\frac{8}{4}$

19

Multiple Choice

Monique wants to bake a cake. She needs $2\frac{1}{8}$ cups of sugar, and $1\frac{5}{24}$ cups of flour. How many cups of ingredients will she use in all?

1

$\frac{10}{3}$ cups

2

$\frac{99}{32}$ cups

3

$\frac{13}{4}$ cups

4

$\frac{25}{8}$ cups

Adding and Subtracting Fractions

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Adding Fractions

Adding and Subtracting Fractions

With a common denominator

Adding fractions with different denominators

Adding and Subtracting Fractions

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