Question

how to rewrite 15 and 1 3rd in radical form

Answer 1

\[how \to write 15 1/3 \in radical form\]

Answer 2

Radicals and fractional exponents are alternate ways of expressing the same thing. You have already seen how square roots can be expressed as an exponent to the power of one-half.

Radical Form
Exponent Form
Integer


4


5


10

Let’s look at some more examples, but this time with cube roots. Remember, cubing a number raises it to the power of three. Notice that in these examples, the denominator of the rational exponent is the number 3.

Radical Form
Exponent Form
Integer


2


5


10

These examples help us model a relationship between radicals and rational exponents: namely, that the nth root of a number can be written as either or .

Radical Form
Exponent Form






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