Chapter 9

Fractions

Fractions are a common way of describing parts of a whole. They’re commonly used for English weights and measures, especially for small measurements in cooking and carpentry.

The Problems You’ll Work On

Here are the skills that you focus on in this chapter:

Converting improper fractions to mixed numbers, and vice versa

Increasing the terms of fractions and reducing fractions to lowest terms

Cross-multiplying to compare the size of two fractions

Applying the Big Four operations (adding, subtracting, multiplying, and dividing) to fractions and mixed numbers

Simplifying complex fractions

What to Watch Out For

Here are a few things to remember as you begin to solve the problems in this chapter:

Remember that the numerator of a fraction is the top number and the denominator is the bottom number.

The reciprocal of a fraction is that fraction turned upside-down. For example, ...