TASK
You are the parking authority. A local store in town has been disobeying the towns by-law for parking in an empty space next to their lot. The lot used to be a parking area and has 100 spaces. 2/5 of the spaces were for cars and the rest was for trucks. On Tuesday, there were 10 cars and some trucks in the parking lot. The parking lot was 3/4 full. How many trucks were in the parking lot?
The value of a quarter is $0.25. It is 1/4 (1 quarter) of $1.00 (1 whole dollar). It takes 4 quarters to make $1.00. It's like 1/4 + 1/4 + 1/4 +1/4 = 4/4
.25 + .25 + .25 + .25 = $1.00
.25 + .25 + .25 + .25 = $1.00
A Fraction is part of a whole.
A number written with the bottom part (the denominator) telling you how many parts the whole is divided into, and the top part (the numerator) telling how many you have.
A number written with the bottom part (the denominator) telling you how many parts the whole is divided into, and the top part (the numerator) telling how many you have.
Slice a pizza, and you will have fractions:
3/8
(Three-eighths)
(Three-eighths)
The top number tells how many slices you have
The bottom number tells how many slices the pizza was cut into.
The bottom number tells how many slices the pizza was cut into.
Numerator / Denominator
We call the top number the Numerator, it is the number of parts you have.
We call the bottom number the Denominator, it is the number of parts the whole is divided into.
Numerator
___________
Denominator
Numerator Denominator You just have to remember those names! (If you forget just think "Down"-ominator)
Equivalent Fractions
Some fractions may look different but are really the same.
We call the top number the Numerator, it is the number of parts you have.
We call the bottom number the Denominator, it is the number of parts the whole is divided into.
Numerator
___________
Denominator
Numerator Denominator You just have to remember those names! (If you forget just think "Down"-ominator)
Equivalent Fractions
Some fractions may look different but are really the same.
It is usually best to show an answer using the simplest fraction ( 1/2 in this case ). That is called Simplifying, or Reducing the Fraction
Simplifying Fractions