1. The problem statement, all variables and given/known data Convert (1G8A.23) base 17 into it's equivalent in base 15. 2. Relevant equations 3. The attempt at a solution How would I go about doing this? I haven't worked with letters yet so the only way I would know of is dividing 1G8A individually by the target base and take the numbers after the decimal and multiply it by the target base. But does that mean I need to convert the 1G8A to decimal first?