
Melita M. answered 04/13/20
Extremely effective Tutor in Math, Science, SAT and ACT Test Prep
Irrational roots translate to fractional exponents. The "sixth root of seven" is the same as 7 raised to the power of 1/6. The "cube root of seven" is seven raised to the power of 1/3. When exponential values are divided, their exponents Subtract.
So: the quotient of the sixth root of 7 and the cube root of 7 is 7^(1/6) / 7^(1/3)
= 7 ^(1/6 - 1/3)
= 7 ^ (-1/6)
= 1/(7^(1/6)) (remember that a negative exponent becomes positive in the denominator)
7^(1/6) = 1.383 and 1/1.383 = 0.72303