Converting Percentages and Fractions

The video tutorial covers a review of chapter 7, focusing on converting percentages to fractions and vice versa, converting decimals to percentages, understanding probability with number cubes and tree diagrams, estimating percentages using conversion charts, and calculating tips, discounts, and interest. The teacher provides step-by-step instructions and encourages students to solve problems independently before reviewing the solutions.

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

• Multiply by 100

• Add 100 to the percentage

• Divide by 100

• Write the percentage over 100

How do you simplify a fraction?

• Multiply both numerator and denominator by the same number

• Subtract the numerator from the denominator

• Add the numerator and denominator

• Divide both numerator and denominator by their greatest common factor

What is the result of converting 125% to a fraction?

• 5/4

• 1 1/4

• 3/2

• 1/4

Which method can be used to convert a fraction to a percentage?

• Cross-multiplication

• Adding 100

• Subtracting 100

• Multiplying by 10

What is the decimal equivalent of 5/8?

• 0.75

• 0.5

• 0.8

• 0.625

How do you convert a percentage to a decimal?

• Add 100

• Multiply by 100

• Subtract 100

• Divide by 100

What is the decimal form of 138%?

• 1.38

• 0.138

• 13.8

• 0.0138

What is the probability of rolling an odd number on a standard die?

• 1/2

• 2/3

• 1/3

• 1/6

How many possible outcomes are there when choosing between four DVD genres and two screen formats?

• 4

• 6

• 8

• 10

What is the probability that a student likes pepperoni pizza if 8 out of 32 students prefer it?

• 1/2

• 1/3

• 1/4

• 1/8