Elementary Technical Mathematics

Published by Brooks Cole
ISBN 10: 1285199197
ISBN 13: 978-1-28519-919-1

Chapter 1 - Section 1.12 - Multiplication and Division of Decimal Fractions - Exercises - Page 71: 16



Work Step by Step

$\frac{18.7-6.6}{28.4-16.1}=\frac{12.1}{12.3}=0.98\underset\uparrow37398$ To round to 3 significant digits, count 3 digits from the left, starting with the first non-zero digit. The next digit to the right is 5 or greater, so add 1 to the final digit, then drop all other digits to the right.
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