Module 15: Background You’ll Need 6

  • Simplify unit fraction exponents
A unit fraction is a fraction whose numerator is [latex]1[/latex] and whose denominator is a positive integer.
The fractions [latex]\dfrac{1}{4}[/latex] and [latex]\dfrac{1}{25}[/latex] are examples of unit fractions.
[latex]b^{\frac{1}{n}} = \sqrt[n]{b}[/latex]

So far, we’ve thought about what happens when you raise a number to a certain power. But we can also turn that question around and ask, “To what power must we raise one number to get another number?”