Converting Fractions and Percentages

The video tutorial explains how to calculate the percentage of a swim workout completed by Donna, who plans to swim 28 laps and has completed 6. It covers converting a fraction to a percentage, rounding the result, and determining the remaining percentage of the workout. The process involves dividing to find a decimal, multiplying by 100 to convert to a percentage, and rounding to the nearest tenth. The tutorial concludes by subtracting the completed percentage from 100% to find the remaining percentage, ensuring the total equals 100%.

How many laps does Donna plan to swim in total?

• 20 laps

• 25 laps

• 28 laps

• 30 laps

What fraction of her swim has Donna completed after 6 laps?

• 1/3

• 1/4

• 3/14

• 6/28

What is the first step in converting a fraction to a percentage?

• Convert to a decimal

• Add a percent sign

• Round to the nearest tenth

• Multiply by 100

How do you convert a decimal to a percentage?

• Subtract 100

• Divide by 100

• Multiply by 100

• Add a decimal point

What is the percentage of the swim Donna has completed, rounded to the nearest tenth?

• 23.1%

• 21.4%

• 20.5%

• 22.3%

What is the next step after converting a fraction to a decimal?

• Add a percent sign

• Multiply by 100

• Subtract from 100

• Divide by 10

How do you calculate the remaining percentage of the swim?

• Add 100 to the completed percentage

• Subtract the completed percentage from 100

• Multiply the completed percentage by 2

• Divide the completed percentage by 2

What percentage of the swim remains for Donna to complete?

• 77.8%

• 79.4%

• 78.6%

• 80.2%

What should the total of the completed and remaining percentages add up to?

• 100%

• 150%

• 200%

• 50%

Why is it important to round the percentage to the nearest tenth?

• To make calculations easier

• To ensure accuracy

• To simplify the fraction

• To avoid decimals