Prealgebra (7th Edition)

Published by Pearson
ISBN 10: 0321955048
ISBN 13: 978-0-32195-504-3

Chapter 4 - Section 4.5 - Adding and Subtracting Unlike Fractions - Exercise Set - Page 273: 54

Answer

$ \frac{x-60}{12x}$

Work Step by Step

$ \frac{1}{12}-\frac{5}{x}$ The least common multiplier is $12\times x= 12x$ Adjust the fractions based on the least common multiplier. First, multiply the numerator and denominator of the first fraction by x. $\frac{1}{12} \times \frac{x}{x}= \frac{x}{12x}$ Then, multiply the numerator and denominator of the second fraction by 12. $ \frac{5}{x}\times \frac{12}{12}= \frac{60}{12x}$ Therefore, $\frac{x}{12x}- \frac{60}{12x}= \frac{x-60}{12x}$
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