Try another version of this question Get help: Box 1: Enter your answer as a number (like 5, -3, 2.2172) or as a calculation (like 5/3, 2^3, 5+4)
Simplify:
`(7 root(3)(4))/(8 root(3)(81)`
Enter DNE for Does Not Exist, oo for Infinity `(7 root(3)(36))/72`