NO 4/5 = 0.8 9/12 = 0.75
4/5 minus 2/9 is 26/45
17 + 13 + 12 + 12 + 6 + 9 = 69.
12+8+10+12+11+9 = 62
15 +26+9+12
40 + 9 + 12 = 61
12 plus 9 equals 21.
12 minus 63 plus 9 is -42
9 over 10 You need to get the same common denominator, in this case, 10. You double the 5 to get 10, so you must double to the 4 to get 8. Then its 8+1 over 10.
3 + 6 + 9 + 12 = 30
-5x + x + 9 = -4x + 12 -4x + 9 = -4x + 12 9 = 12 This equation has no solution.
It is the associative property for the addition of numbers.