You seem to be unaware of the fact that you could have obtained the answer much more easily and quickly by using the calculator that comes as part of your computer.13/79.599 = 0.1633, approx.
13 divided by 79.599 is 0.163318634656214
1 divided by 2 = 0.5 1 divided by 13 = 0.07692 (rounded) 13 divided by 2 = 6.5 13 divided by 13 = 1
1 divided by 13 equals 13
10.9231
0.09
13
80 divided by 13 is 6.15384615384
26 divided by 2 = 13
13
-14 divided by 13 as a fraction = -14/13
fraction of 13 divided by 6 = 13/6
12
1.4085