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Adding and Subtracting Fractions With Unlike Denominators

Adding and Subtracting Fractions With Unlike Denominators

Assessment

Presentation

Mathematics

3rd - 5th Grade

Medium

CCSS
3.NF.A.1, 4.NF.A.1, 4.NF.B.3C

+5

Standards-aligned

Created by

Fabian Chase

Used 51+ times

FREE Resource

9 Slides • 17 Questions

1

Adding and Subtracting Fractions With Unlike Denominators

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2

Recap:

Fractions

3

Multiple Select

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A fraction is ______________.

1

a part of a whole

2

a slice of a whole

3

a section of a whole

4

a very small number

4

Multiple Choice

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The top number of a fraction is called a __________.

1

numerator

2

denominator

3

terminator

5

Multiple Choice

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The bottom number of a fraction is called a __________.

1

numerator

2

denominator

3

exterminator

6

EQUIVALENT FRACTIONS

7

Multiple Select

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Which fractions are equivalent to  34\frac{3}{4}  ?


Use the fraction chart to help you out.

1

 38\frac{3}{8}  

2

 68\frac{6}{8}  

3

 910\frac{9}{10}  

4

 912\frac{9}{12}  

8

Multiple Select

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Which fraction is equivalent to  25\frac{2}{5}  ?


Use the fraction chart to help you out.

1

 410\frac{4}{10}  

2

 68\frac{6}{8}  

3

 910\frac{9}{10}  

4

 912\frac{9}{12}  

9

Multiple Choice

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How many thirds are there in  1212\frac{12}{12}  ?

1

 123\frac{12}{3}  

2

 23\frac{2}{3}  

3

 33\frac{3}{3}  

4

Too many to count!

10

WORDED FRACTION PROBLEMS

11

Multiple Choice

Write a fraction with a numerator of 8 and a denominator of 2.

1

2/8

2

8/2

3

4/2

4

4/8

12

Multiple Choice

Fabian has a pie to share. He gives Amara 3/10 and Christina 1/10. What fraction of Fabian's pie did he give away in all?

1

3/10

2

10/10

3

4/20

4

4/10

13

Multiple Choice

Mommy has 18 marbles. She gives Daddy 12 marbles. What fraction of Mummy's marbles did she give away?

1

6

2

12/18

3

6/18

4

12

14

Multiple Choice

The little girl stole 7/9 of her older brother's cookies. She ate 4/9 of the cookies she stole. What fraction of the stolen cookies remains?

1

3/9

2

11/9

3

9/11

4

5/9

15

Poll

Did you guess the answer to any of the above questions?

16

17

You will need the following:

  • A book or sheet of paper

  • A pencil or pen

  • Your brain!!!

18

Multiple Choice

What is the L.C.M of 4 and 15? Be prepared to show working.

1

4

2

15

3

30

4

24

5

60

19

Multiple Choice

What is the L.C.M of 10 and 15? Be prepared to show working.

1

10

2

15

3

30

4

150

5

60

20

Multiple Choice

What is the L.C.M of 11 and 22? Be prepared to show working.

1

11

2

22

3

44

4

33

5

1000

21

Multiple Choice

What is the value of 'a' in this equivalent fraction?

 \frac{3}{4\ }\ =\frac{a}{20}  

1

a = 15

2

a = 12

3

a = 20

4

a = 18

22

Multiple Choice

What is the value of 'a' in this equivalent fraction?

 82  =24a\frac{8}{2\ }\ =\frac{24}{a}  

1

a = 8

2

a = 24

3

a = 2

4

a = 6

23

Multiple Choice

What is the value of 'a' in this equivalent fraction?

 a6  =2030\frac{a}{6\ }\ =\frac{20}{30}  

1

a = 6

2

a = 30

3

a = 4

4

a = 20

24

Adding Fractions with Unlike Denominators

25

26

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Adding and Subtracting Fractions With Unlike Denominators

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