What is a fractional index?
“fractional index” means, as far as i can tell, an exponent in fraction form. remember that square root is the same as raising the number to the 1/2 power remember that cube root is the same as raising the number to the 1/3 power remember that fourth root is the same as raising the number to the 1/4 power so √28 = 28^(1/2) ∛m = m^(1/3) 4th root of (m³) is m^(3/4) 5th root of (32³) is 32^(3/5) this can be simplified as 2^(3), since 2⁵=32 and then to 8 .
