For Binary, I did 247 / 2 = 123 r1, 123 / 2 = 61 r1, 61 / 2 = 30 r1, 30 / 2 = 15 r0, 15 / 2 = 7 r 1, 7 / 2 = 3 r1, 3 / 2 = 1 r1, 1 / 2 = 0 r1. So the binary representation is 11110111.
For Hexidecimal, I did 247 / 16 = 15 r7, 15 / 16 = 0 r15. So the hexidecimal representation is F7.