verify the commutative law of addition for the following pairs of rational number. (1)-5/7and3/5
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According to commutative law, if a and b are two rational numbers, then a+b = b+a.
Given that,
a = -5/7, b = 3/5
=> -5/7 + 3/5 = 3/5 + (-3/7)
=> (-25+21) / 35 = (21-25) / 35
=> -4/35 = -4/35
L.H.S = R.H.S
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