Saturday, March 7, 2015

Fractions & Mixed numbers

Fractions & Mixed Numbers
Fractions- A fraction tells how many pieces in total, and how many pieces were used. The number that represents how many pieces were used is called the numerator. The numerator is at the top (or left) of the fraction. The denominator is the number that represents how many pieces are in the whole fraction. The denominator is at the bottom (or right) of the fraction.
Ex- 1/3
In this case, 1 is the numerator and 3 is the denominator

Fractions can also be represented by using pictures. The denominator tells you how many pieces to break the picture in and the numerator tells you how many you have to shade in.



Ex- 1/3




Mixed numbers- Mixed numbers are used to represent how many wholes (consider- whole pies) and the joining fraction, which is not completed. When you have a whole number and a fraction, you always say the whole number first and then you say the fraction.
Ex- 12/4= One and two fourths
See the picture below to look at how whole numbers are drawn.









To write whole numbers as a fraction multiply the denominator times the fraction and add your answer with the numerator. By doing that, you will have the numerator done. To get the denominator just keep the bottom number the same.
WARNING- You can ONLY draw an improper fraction if it is turned into a mixed number.
To turn an improper fraction, divide the denominator times the numerator. If you have left, put it as the numerator of the fraction, and again, the denominator stays the same.