57 + 1 = 58
57
-57
Decimal 57 = 57 which can be written as 57/1.Decimal 57 = 57 which can be written as 57/1.Decimal 57 = 57 which can be written as 57/1.Decimal 57 = 57 which can be written as 57/1.
57
-79
19 + 31 + 7 = 57
All those that end with 1, 3, 5, 7 and 9. Start with 1, and add 2 at a time.
It is 42
To calculate it you add 81 and 57, then divide by 2.
The factors of 57 are: 1, 3, 19, 57
The reciprocal of 57 is 1/57
57 = 57/1