viidennes

Viidennes is a mathematical term that denotes one fifth of a whole. It represents the fractional part 1/5, which in decimal form is 0.2 and in percent form is 20 percent. The concept is used to describe portions, shares, or divisions that split a quantity into five equal parts.

Notation and conversion

Viidennes can be written as 1/5 or expressed as a fifth. It is also equivalent to 2/10, 3/15, and other fractions that simplify to 1/5. In calculations, one fifth of a number x is found by multiplying x by 1/5 or by dividing x by 5.

Examples

If a pizza is divided into five equal slices, each slice represents one viidennes of the pizza. If a class has 30 students, one viidennes corresponds to 6 students. In problems involving percentages, one viidennes is 20%.

Relationship to related concepts

Viidennes is a specific case of fractions in arithmetic. It connects to decimals and percentages through simple conversions: 1/5 = 0.2 = 20%. It can also appear in geometric contexts, for example when a shape is partitioned into five equal parts.

Usage and context

The term is used in mathematical education and everyday reasoning wherever a fifth of a quantity is relevant. While the exact linguistic form of the term can vary between languages, the underlying idea remains the same: one part of five equal parts of a whole.