6/8
34 is an integer, not a fraction. There is not really a sensible way of writing it as a fraction. However, if you must, you can use (34*k)/k where k is any non-zero integer as an equivalent fraction.
It is: 7/10 as a fraction
0.777 is a fraction. It is a fraction in decimal form rather than in the form of a ratio. However, that does not stop it being a fraction. And, since it is a decimal fraction, there is not another simpler decimal form. Its equivalent, in rational form, is 777/1000. You cannot simplify this fraction.
12/13.
0.004% as a reduced fraction is 1/25000
They are ratios.
42
The reciprocal of the fraction is simply the fraction raised to the -1 power. Simply "flip the fraction upside down" to find the reciprocal. e.g. 3/23 has a reciprocal of 23/3.
Mademoiselle
It is a decimal fraction.
86
IA seeks to ensure availability. The three broad areas that IA seeks to ensure and protect are Confidentiality, Integrity (of the information - protecting it from unauthorized changes or corruption), and Availability.