First add all the negative numbers. It -4+-3+-8 is -15. Now 3+9=12
So we need to as 12 to -15 which is the same as 12-15 or -3.
When you add negative numbers you can just add them like positives then place the negative sign in front of you answer. Adding a positive and a negative is like subtracting the negative one from the positive one. That is what I did.
8/9 + 3/9 + 2/9 = 13/9 = 1 4/9
1+2+3+4+5+6+7+8+9=37
1+2+3+4+5+6+7+8+9= 45 :)
The sum of 3/8 and 4/9 is 59/72.
1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 + 11 + 12 = 78
It is: -4+3-8 = -9
2 + 4 + 8 + 6 + 3 + 7 + 9 + 8 = 47
9 + 8 + 7 + 6 + 5 + 4 + 3 = 42
4/9 + 8/9 = 12/9 = 4/3
9 + 6 + 9 + 6 + 9 + 8 + 5 + 2 + 9 + 8 + 7 + 6 + 5 + 4 + 3 + 2 + 1 = 99
9/8
8/9 + 3/9 + 2/9 = 13/9 = 1 4/9
1+2+3+4+5+6+7+8+9=37
89
1 + 6 + 9 - 8 + 4 - 5 + 2 + 3 = -6
1+2+3+4+5+6+7+8+9= 45 :)
1 + 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 = 46