173
CChapter 18hapter 18
- = x 0 1 2 3 4 5 6 7 8 9 ( ) % < > + - = x 0 1 2 3 4 5 6 7 8 9 ( )
% < > + - = x 0 1 2 3 4 5 6 7 8 9 ( ) % < > + - = x 0 1 2 3 4 5 6 7 8 9
( ) % < > + - = x 0 1 2 3 4 5 6 7 8 9 ( ) % < > + - = x 0 1 2 3 4 5 6 7 8
9 ( ) % < > + - = x 0 1 2 3 4 5 6 7 8 9 ( ) % < > + - = x 0 1 2 3 4 5 6 7
8 9 ( ) % < > + - = x 0 1 2 3 4 5 6 7 8 9 ( ) % < > + - = x 0 1 2 3 4 5 6
7 8 9 ( ) % < > + - = x 0 1 2 3 4 5 6 7 8 9 ( ) % < > + - = x 0 1 2 3 4 5
6 7 8 9 ( ) % < > + - = x 0 1 2 3 4 5 6 7 8 9 ( ) % < > + - = x 0 1 2 3
FFRACTIONS RACTIONS
MMADE EASYADE EASY
When I was in elementary school, I noticed that many of my teachers
had problems when they had to explain fractions. But fractions are
easy.
WORKING WITH FRACTIONS
We work with fractions all the time. If you tell the time, chances are
you are using fractions (half past, a quarter to, a quarter past, etc.).
When you eat half an apple, this is a fraction. When you talk about
football or basketball (half-time, second half, three-quarter time,
etc.), you are talking about fractions.
We even add and subtract fractions, often without realizing it or
thinking about it. We know that two quarters make a half. Half-time
during a game is at the end of the second quarter. Two quarters
make one half.
cc18.indd Sec1:173 18 .indd Sec 1 : 173 1/9/07 8:40:35 AM 1 / 9 / 07 8 : 40 : 35 AM
- = x 0 1 2 3 4 5 6 7 8 9 ( ) % < > + - = x 0 1 2 3 4 5 6 7 8 9 ( )