Exponent Fraction 7Fe105
1. **State the problem:** Simplify and evaluate the expression $$\left( \frac{12^{\frac{1}{5}}}{27^{\frac{1}{5}}} \right)^{\frac{5}{2}}$$.
2. **Recall the exponent rules:**
- When you have a fraction raised to a power, apply the power to numerator and denominator separately: $$\left( \frac{a}{b} \right)^m = \frac{a^m}{b^m}$$.
- When you have a power raised to another power, multiply the exponents: $$\left(a^m\right)^n = a^{mn}$$.
3. **Apply the power to the fraction:**
$$\left( \frac{12^{\frac{1}{5}}}{27^{\frac{1}{5}}} \right)^{\frac{5}{2}} = \frac{\left(12^{\frac{1}{5}}\right)^{\frac{5}{2}}}{\left(27^{\frac{1}{5}}\right)^{\frac{5}{2}}}$$
4. **Multiply exponents inside numerator and denominator:**
$$12^{\frac{1}{5} \times \frac{5}{2}} = 12^{\frac{1}{2}}$$
$$27^{\frac{1}{5} \times \frac{5}{2}} = 27^{\frac{1}{2}}$$
5. **Rewrite the expression:**
$$\frac{12^{\frac{1}{2}}}{27^{\frac{1}{2}}} = \frac{\sqrt{12}}{\sqrt{27}}$$
6. **Simplify the square roots:**
$$\sqrt{12} = \sqrt{4 \times 3} = 2\sqrt{3}$$
$$\sqrt{27} = \sqrt{9 \times 3} = 3\sqrt{3}$$
7. **Divide the simplified roots:**
$$\frac{2\sqrt{3}}{3\sqrt{3}} = \frac{2}{3}$$
**Final answer:** $$\frac{2}{3}$$