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For questions about the teaching of fractions and their interpretations. Fractions are numbers of the form $p/q$, where $p$ and $q \neq 0$ are integers.

8 votes

Negative Denominator in Fractions; Importance and Applications

I disagree with @yoniLavi that we never need such fractions. Since division by negative numbers makes sense, such a fraction with a negative denominator also does. … Such fractions come up all the time in algebra and calculus. For example, in the definition of slope. …
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