Which of the following expressions shows that rational numbers are associative under multiplication.
a. 2/3 x (-6/7x3/5) = (2/3x-6/7)x3/5
b. 2/3x(-6/7x3/5) = 2/3x(3/5x-6/7)
c. 2/3x(-6/7x3/5) = (3/5x2/3)x-6/7
d. (2/3x-6/7)x3/5 = (-6/7x2/3)x3/5
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expression (a) shows that rational numbers are associative under multiplication .
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Expression (a)shows that rational numbers are associative under multiplication.
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