Converting Fractions to Decimals and Percentages

The video tutorial explains how to convert fractions into percentages by first converting them into decimals. It covers three examples: converting 4/5, 18/20, and 21/25 into percentages. The process involves adjusting the denominator to 100, converting the fraction to a decimal, and then multiplying by 100 to get the percentage.

What is the first step in converting 4/5 to a percentage?

• Add 5 to the numerator

• Divide the numerator by the denominator

• Convert the fraction to have a denominator of 10

• Multiply the numerator by 100

What is 4/5 as a decimal?

• 0.8

• 0.5

• 0.4

• 0.9

What percentage is equivalent to 4/5?

• 90%

• 80%

• 50%

• 40%

How do you convert 18/20 to a fraction out of 100?

• Multiply both numerator and denominator by 10

• Multiply both numerator and denominator by 5

• Add 2 to both numerator and denominator

• Divide both numerator and denominator by 2

What is 18/20 as a decimal?

• 0.45

• 0.9

• 0.8

• 0.18

What is the percentage equivalent of 18/20?

• 90%

• 85%

• 95%

• 80%

What is the percentage equivalent of 21/25?

• 80%

• 90%

• 85%

• 84%