Lesson presentation on Fractions

1. FRACTIONS
• D.Nxumalo
• 03/09/2018
• Powerpointpresentation

2. OBJECTIVES
LEARNERS SHOULD
• Understand the term fractions,Denominator and Numerator
• Identify different types of fractions
• Write fractions in word forms

3. WHAT IS A FRACTION?
Fraction is the number that is not a whole number, but
a part of a whole.
It is considered as a method of counting parts of things.
Fractions consists of a NUMERATOR and
DENOMINATOR.
 The top number of a fraction is called NUMERATOR.
The bottom number of a fraction is called
DENOMINATOR.

4. WE USE FRACTIONS ALL THE TIME.
Have you ever used a steel tape or a ruler?
 Inches are divided into parts
Have you ever used a measuring cup?
 Cups are divided into parts
Have you ever seen a pizza?
 Pizza is divided into parts
Have you ever see slices of bread?
 Loaf of bread is divided into slices.

5. TYPES OF FRACTIONS
Proper fractions – the top number
(numerator) is SMALLER than the bottom
number (denominator).
5
7
Improper fractions – the top number is
LARGER than the bottom number.
19
6
Mixed numbers – a whole number and a
fraction.3
2
4

6. REMEMBER THIS!
 The denominator can never be equal to 0.
12
0
= DOES NOT EXIST
 A fraction with a numerator of 0 equals 0.
0
3
= 0
0
3234
=0

7. EXAMPLE
How much of a pizza do we have ?
The blue circle is our whole. - if we divide the whole into 8 congruent
pieces, - the denominator would be 8.
We can see that we have 7 of these pieces. Therefore the numerator is
7, and we have
𝟕
𝟖
of a pizza.

8. NAMING OF FRACTIONS
• In spoken English people say the
numerator as a cardinal number
followed by the ordinal of the
denominator + ”s”.
• In Maths, when we use fractions
we usually say the numerator
OVER the denominator

9. LET’S PRACTISE
Can you read the following fractions? (Try to think of the usual way
instead of the mathematical way)
a.
4
6
b.
12
4
c.
3
5
Can you write the following in fraction form?
a. One third
b. Six fifths
c. Seven sevenths

10. THANK YOU…

11. REFERENCES
HTTPS://WWW.SLIDESHARE.NET/MOBILE/BAFOMAR/BASIC-FRACTIONS
HTTPS://WWW.SLIDESHARE.NET/MOBILE/MNASSIMI/FRACTION-44331310
HTTPS://WWW.SLIDESHARE.NET/MOBILE/ITUTOR/FRACTIONS-27971283
HTTPS://WWW.SLIDESHARE.NET/MOBILE/BILLYCHARLIE/UNDERSTANDING
-FRACTIONS-33125206
HTTPS://WWW.SLIDESHARE.NET/MOBILE/BILLYCHARLIE/201124170