Convert AB6.4F Hex to Binary, Octal, Decimal

[noobie!]

Homework Statement

convert the hexadecimal number of AB6.4F to bas of 16 to its binary,octal,and decimal equivalent numbers..

Homework Equations

The Attempt at a Solution

i don't know what to refer,as what i know was 6.4 is an even number which could link up binary,octal but i have no idea where to begins with?...could you please give me some clue?

 

[heth]

What are all the possible digits that could appear in a hexadecimal number? (For example, the possible digits in a binary number are 1 and 0.)

If you're not sure, look it up in a book or online.

That should help you figure it out.