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Rational Numbers

★☆☆☆☆Elementary

📖Definition

A number that can be expressed as a ratio (fraction) of two integers.

ℚ = (a)/(b) \mid a, b ∈ ℤ, b ≠ 0

Set notation for rational numbers

예제 1★☆☆☆☆

Select the rational numbers: 1/2, √2, 0.333..., π

예제 2★☆☆☆☆

Express 0.75 as a fraction in lowest terms.

0.75 = (75)/(100) = (3)/(4)

Exact ratio expression

Recipe ingredient ratios

#number#fundamental#rational#elementary