3/8+(-5)/7=(-5)/7 is an example to show that
a) addition of rational numbers is commutative
b Rational numbers are clos

3/8+(-5)/7=(-5)/7 is an example to show that
a) addition of rational numbers is commutative
b Rational numbers are closed under addition
c) addition of rational number is associative
d) Rational numbers are distributive under addition​

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