Converting Fractions, Decimals, and Percentages

Professor Dave explains how to convert between fractions, decimals, and percentages. He demonstrates converting percentages to fractions and decimals, and vice versa, using practical examples like sales tax. The video also covers comparing different forms of numbers by converting them to a common format. Key tips include moving decimal places for conversions and simplifying fractions. The tutorial emphasizes understanding these conversions to apply them in various scenarios.

What fraction does 30% convert to?

• 30/10

• 3/100

• 30/100

• 3/10

How do you convert a percentage to a decimal?

• Move the decimal point two places left

• Move the decimal point two places right

• Divide by 100

• Multiply by 100

What is the correct decimal placement for converting 30% directly to a decimal?

• 0.3

• 3.0

• 0.03

• 30.0

What is 8.25% as a decimal?

• 0.0825

• 0.825

• 8.25

• 0.00825

How much is the sales tax on a $50 item at 8.25%?

• $4.50

• $5.00

• $4.25

• $4.13

Tags

CCSS.7.RP.A.3

What is 0.84 as a percentage?

• 0.84%

• 8.4%

• 84%

• 840%

What decimal represents three fifths?

• 0.6

• 0.3

• 0.5

• 0.8

Tags

CCSS.4.NF.C.6

What percentage does three fifths equal?

• 60%

• 50%

• 30%

• 80%

Arrange the following in ascending order: 45%, 21/50, 0.43.

• 21/50, 0.43, 45%

• 0.43, 21/50, 45%

• 45%, 0.43, 21/50

• 21/50, 45%, 0.43

What is 45% as a fraction with a denominator of 100?

• 9/20

• 90/200

• 45/50

• 45/100