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Exercises Numbers, fractions and percents

Example 4.58 from Prealgebra, 4.4 Add and Subtract Fractions with Common Denominators

Add and Subtract Fractions with Common Denominators: example 4.58

Use fraction circles to find the difference: $\frac{4}{5} - \frac{1}{5} .$

Work it out on paper first. Then open the solution one step at a time, and stop as soon as you can finish on your own.

Solution
Start with four $\frac{1}{5}$ pieces. Take away one $\frac{1}{5}$ piece. Count how many fifths are left. There are three $\frac{1}{5}$ pieces left.

Your turn

The book's Try It right after this example: same idea, new numbers. Only the answer is given.

Use a model to find each difference. Show a diagram to illustrate your model.

$\frac{7}{8} - \frac{4}{8}$

How did it go?

PreviousAdd and Subtract Fractions with Common Denominators: example 4.57 Next Add and Subtract Fractions with Common Denominators: example 4.59

From Prealgebra (1st edition) by OpenStax (Rice University), section 4.4, licensed under CC BY 4.0. Original at openstax.org. We split the solution into steps; the words, numbers and figures are the book's. OpenStax doesn't endorse this site.