Assertion: rational number's fraction | /r/CapableOf | produce fraction
Facets:
value: always
type: DEGREE
value: for the answer
type: PURPOSE
Source sentences:
text: Since a rational number is, by definition, one that can be written a a ratio of 2 integers, adding 2 rationals is tantamount to adding 2 fractions, which always produces a fraction (ratio of 2 integers) for the answer, so the answer is, by definition, rational.