1.9 Fractions 
Fractions: Bits and PiecesFractions are used often, for instance when adding leftover pails of foam or mixing gas and oil for chain saw fuel. Fractions allow the use of parts of a number or combinations of parts and whole numbers, such as , , or . The remainder found in long division can be changed to a fraction. Like whole numbers, fractions can be added, subtracted, divided, and multiplied. Fractions can also be represented as decimals (see Section 1.6). Example 1  What fraction of the box in the figure below is shaded? What fraction is not shaded? Whole Numbers as FractionsFractions can also describe whole numbers or a whole number with a remainder expressed as a fraction. For example, a whole number can be written as: , , or
The whole number 1 can be written as: , , , etc. Fractions larger than 1 have a larger number in the numerator or top part of the fraction. , , and are all larger than 1.
