P3_Fractions_1

Fractions (1)

21 Aug 2021

​What is fraction?

​Why do we need fractions?

​What is fraction?

​Why do we need fractions?

​- not enough to split whole items among everyone when sharing

​

​What is fraction?

​Why do we need fractions?

​- not enough to split whole items among everyone when sharing

​Sharing is caring, we must all share

​- how do we share?

​Some things about fractions ...

​- Numerator: number above the line in a fraction

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- Denominator: number below the line in a fraction

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Multiple Choice

We have a fraction:  $$\frac{3}{5}$$  

What is the numerator?

• 2

• 3

• 4

• 5

Multiple Choice

We have a fraction:  $$\frac{3}{5}$$  

What is the denominator?

• 2

• 3

• 4

• 5

Multiple Choice

We have a fraction:  $$\frac{3}{5}$$  

What is the difference between the numerator and denominator?

• 2

• 3

• 4

• 5

Multiple Choice

We have a fraction:  $$1\frac{2}{3}$$  

What is the numerator?

• 1

• 2

• 3

• 4

​Types of fractions

• Simple fractions

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• ​Improper fractions

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• ​Mixed number

​Types of fractions

• Simple fractions

​Numerator smaller than denominator

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• ​Improper fractions

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• ​Mixed number

​Types of fractions

• Simple fractions

​Numerator smaller than denominator

​

• ​Improper fractions

​Numerator bigger than denominator

​

• ​Mixed number

​Types of fractions

• Simple fractions

​Numerator smaller than denominator

​

• ​Improper fractions

​Numerator bigger than denominator

​

• ​Mixed number

​Number plus a simple fraction

Multiple Choice

Which of the following is not a simple fraction?

• $$\frac{4}{5}$$  

• $$\frac{8}{9}$$  

• $$\frac{4}{3}$$  

• $$\frac{6}{6}$$  

Multiple Choice

Which of the following is an improper fraction?

• $$\frac{4}{5}$$  

• $$\frac{6}{30}$$  

• $$\frac{600}{712}$$  

• $$\frac{2021}{2020}$$  

Multiple Select

Which of the following is the biggest?

• $$\frac{4}{5}$$  

• $$\frac{8}{10}$$  

• $$\frac{40}{50}$$  

• $$\frac{400}{500}$$  

​Equivalent fractions

​Why do we need equivalent fractions?

​- ​We need to be equal to all when comparing.

​Equivalent fractions

​How do we get fractions to be equivalent?

• Denominator has to be equal

(You must know your multiplication table well)

​Equivalent fractions

​Getting denominator to be the same:

​Equivalent fractions

​Getting denominator to be the same:

​Equivalent fractions

​Getting denominator to be the same:

Fill in the Blank

What value is the ?

$$\frac{1}{10}\ =\ \frac{?}{50}$$  

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​

Fill in the Blank

What value is the ?

$$\frac{1}{10}\ =\ \frac{?}{100}$$  

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Fill in the Blank

What value is the ?

$$\frac{5}{10}\ =\ \frac{10}{?}$$  

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Fill in the Blank

What value is the ?

$$\frac{2}{?}\ =\ \frac{10}{20}$$  

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​Simplest form

​Simplest form

​How to get to simplest from?

​- Get the denominator to the lowest possible number

​(You must know your multiplication and division very very well)

​(You must be fair to the numerator and the denominator)

​Recap

• ​Numerator and denominator​

• ​Types of fractions

• ​Equivalent fractions

• ​Simplest form