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WRITING FRACTIONS WITH A DENOMINATOR OF 2 IN DECIMAL FORM

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The concepts for this exercise are summarized below. For a complete discussion, read the text.

On the next web exercise (finding the average of two signed numbers), you will need to report your answers in decimal form.
All your answers will be fractions with a denominator of 2, and you should be able to convert them to a decimal without having to pull out your calculator!

To convert (say)  15/2  to decimal form, go through this thought process:
How many times does  2  go into  15 ?
Answer: It goes in  7  times, with  1  left over.
The answer is  7.5 .

To convert a negative fraction (say  -19/2 ) to decimal form, go through this thought process:
Firstly, the answer will be negative.
How many times does  2  go into  19 ?
Answer: It goes in  9  times, with  1  left over.
The answer is  -9.5 .

Of course, if  2  goes in evenly, then you don't need a decimal at all to report your answer: say,  -16/2 = -8 .

Click on "new problem" to get started!


Rewrite as a decimal (as needed):


Put your answer here:


Click here or press "tab" to check your answer:


When you're ready to time yourself, use these buttons.
When you "end timing," you'll get a summary sheet of your results. Good luck!
     


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One Mathematical Cat, Please! A First Course in Algebra
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