Lesson 1: What is a Fraction. Fraction Types.
- What Is a Fraction.
- Fraction Examples.
- Fraction Parts: Numerator , Denominator , Vinculum.
- Fraction Types: Proper Fractions , Improper Fractions , Mixed Fractions.
- Play the Practice Game
WHAT IS A FRACTION
When an object is divided into a number of equal parts then each part is called a fraction.
There are different ways of writing a fraction. For example, two fifths of an object
can be written as
- a common fraction
We will learn about percentages and decimals later.
Now let us have a closer look at the common fraction:
2 numerator says how many parts in the fraction
vinculum = "divide by"
5 denominator says how many equal parts in the whole object
Always remember: denominator can NEVER be 0.
Why? Because you cannot divide by 0.
We divide a chocolate bar into 5 equal parts.
Each part is of the whole bar.
We read as one fifth.
The whole bar has 5 fifth parts.
We write it: 1 =
We have a box of gingerbread men. There are 5 men in the box.
Each man is of the box contents.
The whole box has 5 fifth parts.
We write it: 1 =
Two gingerbread men are pink.
Two pink men are of the box contents.
There are 3 different types of fractions:
- Proper Fractions
Numerator < Denominator
Proper fractions have the nominator part smaller than the
for example , or .
Fractions Numerator > Denominator or Numerator
Improper fractions have the nominator part greater or equal to
the denominator part,
for exampleor .
- Mixed Fractions
Mixed fractions have a whole number plus a fraction, for example 2or 123 .
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