Math Problem Statement

Simplify the following expressions without exponents: 1) (4/3) ÷ 8 2) (1/125)^(2/3)

Solution

Let's break down and simplify both expressions.

1. First Expression: 438\frac{\frac{4}{3}}{8}

  • This is equivalent to multiplying by the reciprocal: 43÷8=43×18=4×13×8=424=16\frac{4}{3} \div 8 = \frac{4}{3} \times \frac{1}{8} = \frac{4 \times 1}{3 \times 8} = \frac{4}{24} = \frac{1}{6}

Thus, the simplified result for the first expression is 16\frac{1}{6}.


2. Second Expression: (1125)23\left( \frac{1}{125} \right)^{\frac{2}{3}}

  • The cube root of 125 is 5, so we first simplify (1125)13=15\left( \frac{1}{125} \right)^{\frac{1}{3}} = \frac{1}{5}.
  • Now square the result: (1125)23=(15)2=125\left( \frac{1}{125} \right)^{\frac{2}{3}} = \left( \frac{1}{5} \right)^2 = \frac{1}{25}

Thus, the simplified result for the second expression is 125\frac{1}{25}.


Final Answers:

  1. 16\frac{1}{6}
  2. 125\frac{1}{25}

Let me know if you'd like more details or have any questions!


Here are 5 follow-up questions:

  1. How do you multiply fractions?
  2. What are the rules for dividing by a fraction?
  3. How do you calculate the cube root of a number?
  4. What are fractional exponents, and how do they work?
  5. How can exponentiation with fractions be used to simplify radicals?

Tip: When simplifying complex expressions, try to break them down step by step, simplifying small parts first before recombining them.

Ask a new question for Free

By Image

Drop file here or Click Here to upload

Math Problem Analysis

Mathematical Concepts

Fraction Division
Exponentiation
Radicals

Formulas

a/b ÷ c = a/b × 1/c
(a^m)^n = a^(m*n)
(a/b)^(m/n) = (a^(m/n))/(b^(m/n))

Theorems

Properties of Exponents
Simplification of Radicals

Suitable Grade Level

Grades 8-10