Perform the calculations on a calculator without rounding. Following Exercise 56, show that the decimal equivalents of

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Perform the calculations on a calculator without rounding.

Following Exercise 56, show that the decimal equivalents of the following fractions indicate they are rational: 

(a) 1/3 

(b) 5/11

(c) 2/5. What is the repeating part of the decimal in (c)?


Data from Exercises 56

At some point in the decimal equivalent of a rational number, some sequence of digits will start repeating endlessly. An irrational number never has an endlessly repeating sequence of digits. Find the decimal equivalents of. 

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Basic Technical Mathematics

ISBN: 9780137529896

12th Edition

Authors: Allyn J. Washington, Richard Evans

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