same of the positive add inte
gers lessthan 20
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You simply add the numbers: the answer has a positive sign.
The sum will have the same sign as the number with the largest magnitude. If the numbers have the same magnitude, then the answer is zero, which is positive.
The same as with positive ones. Make sure they have the same denominator and add or subtract their numerators.
In addition, the sign of the answer will be the same as the sign of the addend with the greatest magnitude (distance from zero).
If you add a negative number to a positive number, then it's pretty much subtraction. For instance, -5 + 7 is the same as 7-5.