The value of the answer is the sum of the absolute values of the numbers and the sign of the answer is the same as that of the two numbers.
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what is the rule in adding rational numbers
The magnitude of the answer is the difference between the two numbers and it has the sign of the integer which has the bigger magnitude. I guess so?
The sum is positive.
If you can write the number as a fraction, with integers in the numerator and the denominator, it is rational. In the case of decimal numbers, if the decimal representation terminates (e.g. 2.16), or is periodic (perhaps after some initial digits, like 4.130202020202...), then it is rational. For numbers defined according to some rule, it is not always known whether they are rational or irrational. ILuv You!![; <3 Hope This Helps You!!(:
Adding negatives is exactly the same as taking away the positive number. Alternatively you can think of it as "imagine both the numbers are positive, add them together. This number is then negative. And you're done".