-1
4+2+1 = 7
The sum of 7 and -8 is -1.
4/7 I guess. 4/7 + 4/7 = 8/7 = 1 1/7. 1 1/7 > 1.
6 & 1. 6+1=7 and 6X1=6
The sum of 7/1 and 1/16 is 7 1/16
The sum is: 8
1 and 7/12
-7
No it is not.
7
15
8
-1
It is: 8+1+7 = 16
-1
The numbers needed are 1 and 7