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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.
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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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