Percentage Calculations and Conversions

The video tutorial explains how to convert fractions into percentages using two methods: equivalent fractions and multiplication by 100. It demonstrates these methods with examples, including expressing shaded parts as percentages and calculating the percentage of a part of a quantity. A story problem involving spending is also solved to illustrate the concept further.

What is the main goal of converting a fraction to a percentage?

• To make the fraction larger

• To express the fraction in terms of 100

• To simplify the fraction

• To change the fraction to a decimal

In Method 1, what is the first step to convert a fraction to a percentage?

• Adjust the denominator to 100

• Multiply the fraction by 100

• Add 100 to the numerator

• Subtract 50 from the numerator

Using Method 1, what do you multiply 1/2 by to convert it to a percentage?

• 25

• 75

• 50

• 100

What is the result of converting 1/2 to a percentage using Method 1?

• 75%

• 25%

• 50%

• 100%

In Method 2, what operation is performed on the fraction to convert it to a percentage?

• Subtract 100

• Add 100

• Divide by 100

• Multiply by 100

What is the percentage equivalent of 1/2 using Method 2?

• 50%

• 25%

• 75%

• 100%

How many parts out of four are shaded in the example given?

• 1

• 4

• 3

• 2

What percentage do the shaded parts represent in the example?

• 25%

• 50%

• 75%

• 100%

What is the first step in finding the percentage of a part of a quantity?

• Convert the quantity to kilograms

• Write the part and quantity as a fraction

• Multiply the part by 100

• Add the part and quantity

What is the percentage of 800 grams out of 2 kilograms?

• 50%

• 30%

• 20%

• 40%