Final answer:
The expression 216 1/3 is asking for the cube root of 216. Simplifying this, we find that 6 multiplied by itself three times is 216, so the equivalent value for 216 1/3 is 6.
Step-by-step explanation:
The question asks which expression is equivalent to 216 1/3. This requires understanding of how to handle fractional exponents. The fractional exponent 1/3 signifies the cube root, and to simplify 216 1/3, we take the cube root of 216.
The cube root of 216 is the number that, when multiplied by itself three times, gives 216. Since 6 * 6 * 6 equals 216, the cube root of 216 is 6. Therefore, 216 1/3 is equivalent to 6.