If we have to divide evenly 6 apples to 3 children, then we perform the operation:

- 6÷3 = 2
- so we know that each child will get 2 apples.

If we have to divide evenly 2 apples to 3 children, then we perform the operation:

- 2÷3 = ?
- this operation has no solution in the set of natural numbers;
- however we will be able to divide the apples with the help of a knife: the quantity of apple for each child will be defined using the fraction
^{2}/_{3} - all similar cases lead to fractions.

### Fractions are formed by dividing numbers:

- each fraction has the form
^{a}/_{b} - "a" is the
**numerator**, written above the fraction bar; - "b" is the
**denominator**, written below the fraction bar; "b" may not be zero; - "b" shows us in how many equal parts "a" has been divided;
**the value of the fraction**is calculated by dividing the numerator, "a", by the denominator, "b":- "a"÷"b"
- these fractions, in which both the numerator and the denominator are integers, are called
**ordinary fractions**(also called normal, or simple).