you add them together
112
+ 47
-------
159
112
112 + 112 + 112 + 112 + 112 = 560
(-19+66)=(66-19)=47
112 is an integer, not a fraction.
There are listed two prime numbers, 47 and 61. 112 is not a prime number since it is an even number and can be divided by 2.
3 x 112...
111 + 112 + 113 = 336.
67 + 112 + 55 = 234
280 + 280 + 112 + 116 = 788
112 + 113 + 111 = 336
112 + 121 = 233
204 + 112 = 316