3√(3/8) = 3(√(1/4 * 3/2) = 3 * 1/2 √(3/2) = 3/2 √(3/2)
Not sure that's any simpler, but the radicand doesn't have any factors which are perfect squares.
It'd also be √(27/8)
Now, if you meant
∛(3/8), that would be ∛(3 * 1/8) = 1/2 ∛3
simplfy
3 root 3/8
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