Answers

The simplest form of 400/420 is 20/21.

Steps to simplifying fractions

1. Find the GCD (or HCF) of numerator and denominator
   GCD of 400 and 420 is 20
2. Divide both the numerator and denominator by the GCD
   400 ÷ 20/420 ÷ 20
3. Reduced fraction: 20/21
   Therefore, 400/420 simplified to lowest terms is 20/21.

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Equivalent fractions: ⁸⁰⁰/₈₄₀ ²⁰⁰/₂₁₀ ¹²⁰⁰/₁₂₆₀ ²⁰⁰⁰/₂₁₀₀ ⁸⁰/₈₄ ²⁸⁰⁰/₂₉₄₀

More fractions: ⁸⁰⁰/₄₂₀ ⁴⁰⁰/₈₄₀ ¹²⁰⁰/₄₂₀ ⁴⁰⁰/₁₂₆₀ ⁴⁰¹/₄₂₀ ⁴⁰⁰/₄₂₁³⁹⁹/₄₂₀ ⁴⁰⁰/₄₁₉

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