-3/12
-7
12.
Yes. By the associative property, a + b + c = a + c + b.
Negative 12 minus 3 plus 9 is equal to -6
9/12's
5/9 + 4/12 = 96/108 or 8/9
3/12 + 2/12 + 4/12 = 9/12 = 3/4
49 plus 56 plus 112 equals 217.
no...why would it.... it equals 2x+9
no 9 + 10 = 19 11 + 10 = 21 9 + 12 = 21
9/12 + 10/12 = 19/12 or 1 and 7/12