Working with Percentages, Fractions, and Decimals

Maria, a mathematician, explains how to convert between percentages, fractions, and decimals. She emphasizes the importance of using the alphabet as a guide for conversions. The video covers converting percentages to decimals, decimals to percentages, decimals to fractions, and fractions to decimals, providing step-by-step instructions and examples for each conversion type.

Why is it important to know the alphabet in this lesson?

• To understand the order of operations

• To remember the direction of conversion

• To solve algebraic equations

• To calculate percentages

Tags

CCSS.RI.6.5

CCSS.RI.7.3

CCSS.RI.8.3

CCSS.RI.8.5

CCSS.RI.9-10.5

How do you convert 40% to a decimal?

• Move the decimal point one place to the right

• Move the decimal point one place to the left

• Move the decimal point two places to the left

• Move the decimal point two places to the right

What is 8% as a decimal?

• 0.08

• 0.8

• 0.008

• 8.0

How do you convert 1.3 to a percentage?

• Move the decimal point two places to the left

• Move the decimal point one place to the right

• Move the decimal point two places to the right

• Move the decimal point one place to the left

What is 75 as a percentage?

• 0.75%

• 7.5%

• 750%

• 75%

How do you convert 0.5 to a fraction?

• 1/5

• 1/2

• 5/100

• 5/10

What is 7 as a fraction when it is in the 10th place?

• 7/10

• 7/100

• 7/1

• 70/100

Tags

CCSS.3.NF.A.1

CCSS.3.NF.A.2B

How do you convert 1/4 to a decimal?

• 0.25

• 0.4

• 0.75

• 0.5

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

• Subtract the denominator from the numerator

• Multiply the numerator by 10

• Add a decimal point to the numerator

• Divide the numerator by the denominator

Tags

CCSS.7.NS.A.2D

CCSS.8.NS.A.1

What is the decimal equivalent of 1/4?

• 0.4

• 0.5

• 0.25

• 0.75