Intro To Proportions

This lesson covers:

  1. What the term 'proportion' means 
  2. Common equivalent fractions, decimals and percentages 

What is 10% expressed as a decimal? 

0.1

0

/

1

Which two of the following proportions are equivalent?

0.3

30%

0.4

1/4

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2

What is 0.5 expressed as a fraction? Give your answer in its simplest form.

\frac{1}{2}

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1

Which two of the following proportions are equivalent? 

0.4

1/5

0.2

50%

0

/

2

What is 20% expressed as a decimal? 

0.2

0

/

1

Which two of the following proportions are equivalent? 

0.333

1/5

1/8

0.125

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/

2

31​

Express the above fraction as a percentage.

(Give you answer to 3 significant figures) 

33.3

%

%

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1

What is 85% expressed as a decimal? 

0.85

0

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1

What is 40% expressed as a fraction? Give the fraction in its simplest form.

\frac{2}{5}

0

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1