Question 281559
You cannot add radicals with different indexes, but you can multiply them which results in adding indexes.

Remember that {{{sqrt(3) = 3^(1/2)}}}

so if you have {{{3^(1/2) * 3^(1/3) = 3^(3/6) * 3^(2/6) = 3^(5/6)}}}

Above, I have found the least common denominator in the indexes and multiplied the terms by adding the indexes.

I hope this helps!