Assertion: rational number's fraction | /r/HasProperty | a/b
Facets:
Source sentences:
text: Every rational number may be expressed in a unique way as an irreducible fraction a/b, where a and b are coprime integers, and b > 0.
text: In the 1760s, Johann Heinrich Lambert proved that the number π (pi) is irrational: that is, it cannot be expressed as a fraction a/b, where a is an integer and b is a non-zero integer.