Question

which property of Rational number is used in (-17)/19×13/20=13/20×(-17)/19​

Answer 1

Answer: This is commutative property of rational numbers under multiplication. This states that in any rational number. AxB = C then BxA also =C.

Step-by-step explanation: In your question, A= (-17)/19

                                               and B = (13/20)