Math > Year 2

Recognizing 

A half is one of two equal parts.

Example
Here we have one whole sandwich.



If we cut a sandwich into 2 equal parts, we’ll get two halves.



Half of the sandwich is one of its two equal parts.

To find \frac{1}{2} of something, we split it into two equal parts.

For example, here are 8 gift boxes.



 

To find half of it, we will divide them into two equal parts.



Hence, to find one half, we divide by 2.
\frac{1}{2} of 8 = 8 ÷ 2 = 4


Let's try a question.

If James eats half of the given sandwiches, how many sandwiches are left? 


 

Answer:

Total number of sandwiches = 10

Fraction of the sandwiches eaten by James = \frac{1}{2}

\frac{1}{2} of 10 

To find half of it, we will divide them into two equal parts.

Hence, to find one half, we divide by 2.

\frac{1}{2} of 10

= 10 ÷ 2 

= 5


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