Algebra 1

Published by Prentice Hall
ISBN 10: 0133500403
ISBN 13: 978-0-13350-040-0

Chapter 1 - Foundations for Algebra - 1-4 Properties of Real Numbers - Mixed Review - Page 28: 68



Work Step by Step

To subtract fractions with unlike denominators, we must first make them have the same denominator. We do this by multiplying by fractions that are equivalent to $1$. $\frac{5}{9}\times\frac{10}{10}=\frac{50}{90}$ $\frac{5}{10}\times\frac{9}{9}=\frac{45}{90}$ We can now subtract the two fractions by subtracting the numerators and putting it over the denominator. $\frac{50}{90}-\frac{45}{90}=\frac{5}{90}$ We divide by $\frac{5}{5}$ to simplify: $\frac{5}{90}\div\frac{5}{5}=\frac{1}{18}$
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