Example 1.   What is ²/₅ as a Percentage?

(a)   Simplify the fraction: ²/₅ is already simplified

(b)   100 ÷ 5 = 20 (5 is the denominator of the fraction)

(c)   ²/₅ × ²⁰/₂₀ = ⁴⁰/₁₀₀ = 40%

Example 2.   What is ⁴/₂₀ as a Percentage?

(a)   Simplify the fraction ⁴/₂₀ = ¹/₅

(b)   100 ÷ 5 = 20 (5 is the denominator of the simplified fraction)

(c)   ¹/₅ × ²⁰/₂₀ = ²⁰/₁₀₀ = 20%

Example 3.   What is ²⁵/₅₀ as a Percentage?

(a)   Simplify the fraction ²⁵/₅₀ = ¹/₂

(b)   100 ÷ 2 = 50 (2 is the denominator of the simplified fraction)

(c)   ¹/₂ × ⁵⁰/₅₀ = ⁵⁰/₁₀₀ = 50%

Example 4.   What is ²⁰⁰/₈₀₀₀ as a Percentage?

(a)   Simplify the fraction ²⁰⁰/₈₀₀₀ = ¹/₄₀

(b)   100 ÷ 40 = 2.5 (40 is the denominator of the simplified fraction)

(c)   ¹/₄₀ × ^2.5/_2.5 = ^2.5/₁₀₀ = 2.5%