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

College Algebra

0. Review of Algebra

Exponents

1:27 minutes

Problem 174

Textbook Question

Write each percent as a fraction. Give answers in lowest terms. 35%

Verified step by step guidance

Start by understanding that a percent is a way of expressing a number as a fraction of 100. So, 35% can be written as \( \frac{35}{100} \).

Next, simplify the fraction \( \frac{35}{100} \) by finding the greatest common divisor (GCD) of the numerator and the denominator.

The GCD of 35 and 100 is 5. Divide both the numerator and the denominator by their GCD.

Perform the division: \( \frac{35 \div 5}{100 \div 5} \).

Write the simplified fraction, which is the fraction in its lowest terms.

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Key Concepts

Here are the essential concepts you must grasp in order to answer the question correctly.

Percentages

A percentage represents a part per hundred and is denoted by the symbol '%'. To convert a percentage to a fraction, you place the percentage value over 100. For example, 35% means 35 out of 100, which can be expressed as the fraction 35/100.

Simplifying Fractions

Simplifying a fraction involves reducing it to its lowest terms by dividing both the numerator and the denominator by their greatest common divisor (GCD). For instance, the fraction 35/100 can be simplified by dividing both 35 and 100 by 5, resulting in 7/20.

Lowest Terms

A fraction is in lowest terms when the numerator and denominator have no common factors other than 1. This means that the fraction cannot be simplified any further. For example, 7/20 is in lowest terms because 7 and 20 share no common factors.