Teacher2Teacher Q&A #1533

Teachers' Lounge Discussion: Fractions

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From: Roger

To: Teacher2Teacher Public Discussion
Date: 2007031512:56:04
Subject: Re: Re: Re: fractions; correction to my last

.66 = 66/100 = 33/50 .66 does not equal 2/3 The decimal for 2/3 is called a repeating decimal. That, there is no last digit in the decimal. We can, however, determine the digit or series of digits that repeat. Example: 1/7 when converted to a decimal is a repeating decimal. The digits that repeat are 142857. 1/7 = .142857142857142857... ( The three periods indicating that the pattern continues without end. ) 1/7 rounded to 2 decimal places is .14 .67 is the decimal for 2/3 rounded to 2 decimal places. .33 is the decimal for 1/3 rounded to 2 decimal places. Note: Originally, what we now call fractions were called common fractions, and what we now call decimals we called decimal fractions.

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