Operations on signed fractions
Signed-fraction arithmetic
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Work out the expression on signed fractions. Write the result as a fraction (negative with a minus before the fraction).
(1/2) + (-1/3) =
Answer: "a/b" or a whole number. Negative fractions can be written "-a/b".
What does this generator do?
The generator builds two fractions with friendly denominators and random signs, plus one operation. Compute the result in lowest terms.
How to solve it
First determine the sign of the result with the sign rules. Then work with the absolute values of the fractions just like with positive fractions, and add the correct sign at the end.
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