1. Fractions

2. Fraction means parts of whole where each part is identical. Example
In the picture 3 boxes out of 12 are shaded.
So shaded portion is
Unshaded portion is

3. To be represented as a fraction all parts need to be equal.
Shaded or Unshaded portion of the above image cannot be represented as fraction as all parts are not equal.

4. In the picture 2 out of 6 stars are selected
More examples
In the picture 2 out of 6 stars are selected
So selected stars are
Not selected stars are

5. In the picture 1 out of 4 parts of the shape are shaded
So shade portion is
Unshaded portion is

6. Try these
Find the fraction of shaded portion