Basic Arithmetic : Percents and Decimals

Study concepts, example questions & explanations for Basic Arithmetic

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Example Questions

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Example Question #2 : Changing A Fraction To Percent

Change  to a percent.

Possible Answers:

Correct answer:

Explanation:

To convert a fraction into a percent, we need to first change the fraction into a decimal.

Now, change the decimal into a percent by multiplying by 100 and adding a percent sign.

Add a percent sign

Example Question #41 : Percents And Decimals

What is  as a percent?

Possible Answers:

Correct answer:

Explanation:

To change a fraction into a percent, you need to first change the fraction into a decimal.

Dividing 12 by 13 gives the following: 

Now, to change the decimal to a percent, start by multiplying the decimal by 100.

Then, just add a percent sign.

Example Question #1 : Changing A Fraction To Percent

What is  of ?

Possible Answers:

Correct answer:

Explanation:

Convert 1% to a fraction by dividing 100.  One percent is equivalent to:

Multiply this with two, and the answer is:

 

Example Question #3 : Changing A Fraction To Percent

Convert  to a percent. 

Possible Answers:

Correct answer:

Explanation:

A percentage can be written as a fraction with any positive whole number in the numerator and 100 in the denominator. To write the fraction as a percent, begin by writing both as fractions:

Cross-multiply to find the missing whole number. 

Divide the known value by the unknown to solve for x. 

 is  percent of , so the answer is .

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