If sum of two rational number is-6 and one of them is -7/2 then the other number is​

-5/2

Let the other number be x

According to question

x+(-7/2) = -6

x-7/2 = -6

x = -6+7/2

x = -(12+7) (LCM of 1 & 2 is 2)

2

x = -5

2

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