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WRITING FRACTIONS WITH A DENOMINATOR OF 2 IN DECIMAL FORM
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See the best ALGEBRA PINBALL time for this exercise
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 .