Math, asked by rajusubha, 3 days ago

the numerical expression 3/8 + (-5/7) equal to -19/56 states that

. rational numbers are not closed under subtraction
. addition of rational number is not commutative
. rational numbers are closed under addition
. addition of rational number is commutative

Answers

Answered by arvindgujjar494
2

Answer:

rational number are not closed under subscription

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