📐

Ratios

★☆☆☆☆Elementary

📖Definition

A comparison of the relative sizes of two numbers, written as a:b or a/b.

a : b = (a)/(b)

Ratio notation

a : b = ka : kb (k ≠ 0)

Property of ratios (multiplying both by same number)

예제 1★☆☆☆☆

Simplify the ratio 12:18.

예제 2★☆☆☆☆

A and B share $72,000 in ratio 2:3. How much does each get?

Ingredient proportions

Scale (e.g., 1:50,000)

Investment allocation

#number#fundamental#ratio#elementary