Add the integer values and apply the common sign. For example +5 and +7 : 5 + 7 = 12 so + 12 -5 and - 7: 5 + 7 = 12 so - 12
7+5=12 5+7=12 12-5=7 12-7=5
no, they are not the same, 12/36 is larger 12/36 = 3/4 = 0.75 5/7 = 0.71
There are 16 subsets: {0, 5, 7, 12}, {0, 5, 7}, {0, 5, 12}, {0, 7, 12}, {5, 7, 12}, {0, 5}, {0, 7}, {0, 12}, {5, 7}, {5, 12}, {7, 12}, {0], {5}, {7}, {12}, and the empty set.
-12
7/12+5/9 is the same as 21/36+20/36 = 41/36
2
-11
The same way you divide positive exponents like ( x^-7 ) / ( x^-12) = x^( -7 - - 12) = x^( -7+12) = x^5
An integer that is equal in magnitude to the sum of their absolute values. Its sign is the same as which of the two numbers you are taking the difference from. For example, for the integers 5 and -7. Their absolute values are 5 and 7 so that the sum of the absolute values is 5+7 = 12. Then 5 - (-7) = +12 and -7 - 5 = -12.
2
It is: 3/5-1/4 is the same as 12/20-5/20 = 7/20