ciaraCochran1876
06.12.2021 •
Mathematics
Is the sum of two rational numbers always rational
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Ответ:
in short, Yes they are always rational.
here's why...
E.g. suppose
and 
are fractions, that means that a,b,c,d are all integers, and b and d are not zero. finding the sum the numerator, and denominator would also have to be integers. the denominator of the sum can't be zero since the denominators of the fractions were not zero, and would give 
and since they are bound by addition (sum means addition) they must also be rational since eit would equal a bigger integer than initially had
Step-by-step explanation:
Ответ: