Adding and Subtracting Fractions With Unlike Denominators

Adding and Subtracting Fractions With Unlike Denominators

Recap:

Fractions

Multiple Select

A fraction is ______________.

• a part of a whole

• a slice of a whole

• a section of a whole

• a very small number

Multiple Choice

The top number of a fraction is called a __________.

• numerator

• denominator

• terminator

Multiple Choice

The bottom number of a fraction is called a __________.

• numerator

• denominator

• exterminator

EQUIVALENT FRACTIONS

Multiple Select

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

Use the fraction chart to help you out.

•  $\frac{3}{8}$  

•  $\frac{6}{8}$  

•  $\frac{9}{10}$  

•  $\frac{9}{12}$  

Multiple Select

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

Use the fraction chart to help you out.

•  $\frac{4}{10}$  

•  $\frac{6}{8}$  

•  $\frac{9}{10}$  

•  $\frac{9}{12}$  

Multiple Choice

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

•  $\frac{12}{3}$  

•  $\frac{2}{3}$  

•  $\frac{3}{3}$  

• Too many to count!

WORDED FRACTION PROBLEMS

Multiple Choice

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

• 2/8

• 8/2

• 4/2

• 4/8

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?

• 3/10

• 10/10

• 4/20

• 4/10

Multiple Choice

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

• 6

• 12/18

• 6/18

• 12

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?

• 3/9

• 11/9

• 9/11

• 5/9

Poll

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

You will need the following:

• A book or sheet of paper

• A pencil or pen

• Your brain!!!

Multiple Choice

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

• 4

• 15

• 30

• 24

• 60

Multiple Choice

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

• 10

• 15

• 30

• 150

• 60

Multiple Choice

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

• 11

• 22

• 44

• 33

• 1000

Multiple Choice

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

 $\frac{3}{4\ }\ =\frac{a}{20}$  

• a = 15

• a = 12

• a = 20

• a = 18

Multiple Choice

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

 $\frac{8}{2\ }\ =\frac{24}{a}$  

• a = 8

• a = 24

• a = 2

• a = 6

Multiple Choice

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

 $\frac{a}{6\ }\ =\frac{20}{30}$  

• a = 6

• a = 30

• a = 4

• a = 20

Adding Fractions with Unlike Denominators

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