Write the fraction you would use to change the base for log8 15 (base 6)

Answer 1

i meant base 8

Answer 2

let x = log₈ 15
by definition: 8^x = 15
now take log of both sides, (base 10 is understood)
log (8^x) = log 15
x log 8 = log 15
x = log15/log8

in general: log_a b = log b/log a , where a ≠ 1, a > 0