Question

verify the associative law of addition for the rational number 5/3,4/7,5/9​

Answer 1

In associative law of addition the groups are changed like

(5/3+4/7)+5/9 = 5/3+(4/7+5/9)

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Answer 2

Answer:

It states that you can add or multiply numbers regardless of how they are grouped. In both the groups the sum is the same. Addition and multiplication are associative for rational numbers.

Verification

(5/3+4/7)+5/9 = 5/3+(4/7+5/9)

(47/21)+5/9 = 5/3+(71/63)

(528/189) = (528/189)

(176/63) = (176/63).

L.H.S = R.H.S

Hence associative law of addition is Verified.

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