# Rational nummer

nummer that can be expressed as the quotient or fraction p/q o twa integers

In mathematics, a rational nummer is ony nummer that can be expressed as the quotient or fraction p/q o twa integers, wi the denominator q nae equal tae zero.[1] Syne q mey be equal tae 1, every integer is a rational nummer. The set o aw rational nummers is uisually denotit bi a boldface Q (or blackboard bauld ${\displaystyle \mathbb {Q} }$, Unicode ℚ); it wis thus named in 1895 bi Peano efter quoziente, Italian for "quotient".

## References

1. Rosen, Kenneth (2007). Discrete Mathematics and its Applications (6th ed.). New York, NY: McGraw-Hill. pp. 105, 158–160. ISBN 978-0-07-288008-3.