MODULE : MATH: FRACTIONS MARCH 2021

MODULE : MATH: FRACTIONS MARCH 2021

FRACTIONS

Definition of Fractions. A fraction represents a numerical value, which defines the equal parts of a whole

A fraction has 3 parts,the NUMERATOR

FRACTION BAR ot VINCULUM

and the DENOMINATOR

CHOOSE THE RIGHT FRACTION

UNIT FRACTION AND NON UNIT FRACTION

What is a unit fraction?A unit fraction with 1 as its numerator (top number), and a whole number for the denominator (bottom number).

EXAMPLES: _{1/2 , 1/3 , 1/4}

What is a non-unit fraction?A non-unit fraction is a fraction with a number greater than one as its numerator (top number) and a whole number for the denominator (bottom number)

EXAMPLES: 2/4 , 5/15, 4/16

TYPES OF FRACTIONS

PROPER FRACTION: NUMERATOR IS LESS THAN THE DENOMINATOR

IMPROPER FRACTION: THE NUMERATOR IS GREATER THAN THE DENOMINATOR

MIXED FRACTION: THERE IS A WHOLE NUMBER AND A FRACTION

EQUIVALENT FRACTIONS

• Equivalent Fractions have the same value, even though they may look different.

  These fractions are really the same:

  12 = 24 = 48

  Why are they the same? Because when you multiply or divide both the top and bottom by the same number, the fraction keeps it's value.

  The rule to remember is:

  "Change the bottom using multiply or divide,

  And the same to the top must be applied

  
  

Similar fractions have the same denominator. 3/5 is similar to 4/5 Dissimilar fractions have different denominators. 4/7 is dissimilar to 4/8

MAKING SIMILAR FRACTIONS: MAKETHE DENOMINATORS SIMILAR

What is a Common Denominator?When the denominators of two or more fractions are the same, they are Common Denominators.

Why is it Important?Before we can add or subtract fractions, the fractions need to have a common denominator

In other words the denominators must be the same.