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Contributor: Rachel Lewis. Lesson ID: 12780
How quickly can you add 7/25 and 12/34? There is a simple way to convert those fractions to a form that's easier to work with. Sing and play your way to converting fractions to decimals the easy way!
Your help is needed to complete a top secret math mission! The Master Math computer has been hacked and the password was reset. To get back into the computer, you will need to convert fractions into decimals.
Here is your first mission: Convert 2⁄5 into a decimal.
You can use long division to convert a fraction to a decimal. Simply divide the numerator (the top number) by the denominator (the bottom number) to find the equivalent decimal.
| 0 | . | 4 | < | 5 is bigger than 2, so it divides in 0 times. Then, put in the decimal point. | ||
| 5 | 2 | . | 0 | < | 2.0 is the same as 2. Ignore the decimal. How many times does 5 go into 20? | |
| - | 2 | 0 | < | 5 goes into 20 4 times. Write the 4 behind the decimal point. | ||
| 0 | < | Finish the long division problem. 20 - 20 has a remainder of zero. |
So, 2⁄5 is equal to 0.4!
Watch more examples with a video. Take notes as you watch Math Antics - Convert any Fraction to a Decimal.
Answer the following questions on a piece of paper:
While you may need to convert fractions into decimals for homework, fractions and decimals are also used in science and statistics.
Go to the Got It? section to find your next mission.
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