Table of contents
- 0. Review of Algebra4h 16m
- 1. Equations & Inequalities3h 18m
- 2. Graphs of Equations43m
- 3. Functions2h 17m
- 4. Polynomial Functions1h 44m
- 5. Rational Functions1h 23m
- 6. Exponential & Logarithmic Functions2h 28m
- 7. Systems of Equations & Matrices4h 6m
- 8. Conic Sections2h 23m
- 9. Sequences, Series, & Induction1h 19m
- 10. Combinatorics & Probability1h 45m
0. Review of Algebra
Exponents
Problem 44
Textbook Question
Multiply or divide as indicated. Write answers in lowest terms as needed. (2/5)/30
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1
Start by rewriting the division of fractions problem: \( \frac{\frac{2}{5}}{30} \).
Recognize that dividing by a number is the same as multiplying by its reciprocal. So, rewrite the expression as \( \frac{2}{5} \times \frac{1}{30} \).
Multiply the numerators together: \( 2 \times 1 = 2 \).
Multiply the denominators together: \( 5 \times 30 = 150 \).
Simplify the resulting fraction \( \frac{2}{150} \) by finding the greatest common divisor of 2 and 150, and divide both the numerator and the denominator by this number.
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Key Concepts
Here are the essential concepts you must grasp in order to answer the question correctly.
Fraction Division
Dividing fractions involves multiplying by the reciprocal of the divisor. For example, to divide 2/5 by 30, you can rewrite it as (2/5) * (1/30). This process simplifies the operation and allows for easier calculation.
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Lowest Terms
A fraction is in lowest terms when the numerator and denominator have no common factors other than 1. To express a fraction in lowest terms, you can divide both the numerator and denominator by their greatest common divisor (GCD). This ensures the fraction is simplified as much as possible.
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Multiplication of Fractions
When multiplying fractions, you multiply the numerators together and the denominators together. For instance, in the operation (2/5) * (1/30), you would calculate 2 * 1 for the numerator and 5 * 30 for the denominator, resulting in a new fraction that can then be simplified.
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