Can anyone convert these corrdinates from decimal system to the hours system?

Question

RA 308.50802083
Declination -12.34375833

If you could explain how you found the answer?

Answer 1

RA 20h 34m 1.92s
DEC -12 deg 20' 37.53"

Geoff G explained how nicely.

Answer 2

I'm not going to calculate it for you, but I'll tell you how. There are 360° in a circle, and also 24 hours, so multiply the RA in degrees by 24/360 to convert it to hours. The declination stays in degrees. Once you've got RA in hours and Dec in degrees, multiply the stuff to the right of the decimal by 60 to convert to minutes and arcminutes respecively.