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 46b
Textbook Question
Multiply or divide as indicated. Write answers in lowest terms as needed. 8/(4/9)
![](/channels/images/assetPage/verifiedSolution.png)
1
Identify the operation: We need to divide 8 by \( \frac{4}{9} \).
Recall that dividing by a fraction is the same as multiplying by its reciprocal.
Find the reciprocal of \( \frac{4}{9} \), which is \( \frac{9}{4} \).
Rewrite the expression as a multiplication: \( 8 \times \frac{9}{4} \).
Multiply the whole number by the fraction: \( 8 \times \frac{9}{4} = \frac{8 \times 9}{4} \). Simplify the fraction if possible.
Recommended similar problem, with video answer:
![](/channels/images/assetPage/verifiedSolution.png)
This video solution was recommended by our tutors as helpful for the problem above
Video duration:
1mPlay a video:
Was this helpful?
Key Concepts
Here are the essential concepts you must grasp in order to answer the question correctly.
Division of Fractions
Dividing by a fraction is equivalent to multiplying by its reciprocal. For example, dividing by 4/9 means multiplying by 9/4. This concept is essential for simplifying expressions involving fractions and is a fundamental operation in algebra.
Recommended video:
Guided course
Radical Expressions with Fractions
Simplifying Fractions
Simplifying fractions involves reducing them to their lowest terms, which means expressing them in a form where the numerator and denominator have no common factors other than 1. This process is crucial for presenting answers clearly and concisely in algebra.
Recommended video:
Guided course
Radical Expressions with Fractions
Order of Operations
The order of operations is a set of rules that dictates the sequence in which mathematical operations should be performed to ensure consistent results. The acronym PEMDAS (Parentheses, Exponents, Multiplication and Division, Addition and Subtraction) helps remember this order, which is vital when solving complex expressions.
Recommended video:
Guided course
Performing Row Operations on Matrices
Watch next
Master Introduction to Exponent Rules with a bite sized video explanation from Patrick Ford
Start learningRelated Videos
Related Practice