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Question
The numerical expression `3/8 + ((-5))/7 = (-19)/56` shows that ______
Options
rational numbers are closed under addition.
rational numbers are not closed under addition.
rational numbers are closed under multiplication.
addition of rational numbers is not commutative.
Solution
The numerical expression `3/8 + ((-5))/7 = (-19)/56` shows that rational numbers are closed under addition.
Explanation:
Rational numbers are closed under addition means the sum of two rational numbers is also a rational number.
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