0.75
68 = 1000100 in binary.
If you mean 68 then it is 68/1 but if you mean 6/8 then it is 3/4
68/1 6/8 = 3/4
No.
If you mean 6/8 then it is equivalent to 0.75
68/100, when simplified, is equivalent to 17/25.
0.544
68 ºF = 293 K
17/68 = 1/4
It is 272/4.
68.000... and 67.999...
68 is an integer and so there is not really a sensible way of writing it as a fraction or mixed number.