Copyright © 2011 Pearson Education, Inc. Publishing as Prentice Hall. Chapter 4 Decimals

Copyright © 2011 Pearson Education, Inc. Publishing as Prentice Hall. 4.6 Fractions and Decimals

Martin-Gay, Developmental Mathematics, 2e 33 Copyright © 2011 Pearson Education, Inc. Publishing as Prentice Hall. Writing Fractions as Decimal Writing Fractions as Decimals To write a fractions as a decimal, divide the numerator by the denominator.

Martin-Gay, Developmental Mathematics, 2e 44 Copyright © 2011 Pearson Education, Inc. Publishing as Prentice Hall. Example Write as a decimal. Thus, written as a decimal is 0.2.

Martin-Gay, Developmental Mathematics, 2e 55 Copyright © 2011 Pearson Education, Inc. Publishing as Prentice Hall. Example Write as a decimal. Notice that the digit 1 keeps occurring as the remainder. This will continue the digit 3 repeating in the quotient. We place a bar over the digit to indicate it repeats.

Martin-Gay, Developmental Mathematics, 2e 66 Copyright © 2011 Pearson Education, Inc. Publishing as Prentice Hall. Example Write as a decimal Write the fractional part only as a decimal. Option 1. Option 2. Write as an improper fraction and divide

Martin-Gay, Developmental Mathematics, 2e 77 Copyright © 2011 Pearson Education, Inc. Publishing as Prentice Hall. Comparing Fractions and Decimals Original numbers Decimals Compare Thus

Martin-Gay, Developmental Mathematics, 2e 88 Copyright © 2011 Pearson Education, Inc. Publishing as Prentice Hall. Example The area of a triangle is Find the area of the following triangle. 17 feet 4.4 feet The area of the triangle is 37.4 square feet.