This document provides an overview of fractions including: 1) It defines a fraction as part of a whole number, with the numerator representing the part and the denominator representing the whole. 2) It explains how to convert fractions to decimals by dividing the numerator by the denominator, and how to convert decimals to fractions by identifying the place value of the decimal. 3) It outlines procedures for adding, subtracting, multiplying, and dividing fractions such as finding common denominators, multiplying or dividing numerators and denominators, and simplifying.

1. Faction Concepts Alex Trujillo January 28,2009 Ms.Klahs 5 th grade class

2. A fraction is... A fraction is part of a whole number The parts of a fraction are denominator and numerator The numerator represents the part of a whole number The denominator represents the whole number 1/2=

3. Conversions To change a fraction to a decimal you... Divide the the denominator into the numerator Add a decimal point and zeros until you have no remainder 1/4= 4 1.00 =0.25 To change a decimal into a fraction... Identify the place value of the last digit. Use that place value for the denominator. 0.375=375/1000

4. Adding fractions Fractions with like Denominators... You add numerators and leave the denominator the same add Simplify Fractions with unlike Denominators... You find a common denominator What ever you multiply the denominator by you multiply the numerators add Simplify

5. Mixed numbers Adding First you find the common denominators for the fractions What you multiplied your denominators by you multiply your numerator Then you add the fraction and the mixed number Simplify Subtracting Find common denominators Multiply your numerator by the same number Subtract Simplify

6. Multiplying and Dividing Fractions Multiply the numerators then the denominators simplify Use the reciprocal of the divisor to write a multiplication problem Multiply or cross cancel simplify