In this presentation we will see how to add fractions

1. Adding
Fractions

2. What is a “Fraction”
When an object is divided into a number of equal
parts then each part is called a fraction.
Example
2
5

3. Now let us have a closer look at the fraction
Example
2
5
Numerator says how many parts in the fraction
Denominator says how many equal parts in the whole object
Always remember: denominator can NEVER be ZERO

4. FRACTION EXAMPLE
We divide a chocolate bar into 5 equal parts
Each part is of the whole bar.
1
5
We read as one fifth.
1
5
The whole bar has 5 fifth parts.
We write it: 1 =
5
5

5. Adding Fractions with like denominator
2
7
4
7
+ =
2+4
7
=
6
7

6. Adding Fractions with unlike denominator
3
5
4
7
+
3x7
5x7
= +
4x5
5x7
=
41
35

7. Adding Fractions with a whole number
4+
3
5
=
3
5
+
4
1
=
3
5
+
4x5
1x5
=
23
5