Answers

The simplest form of 8720/420 is 436/21.

Steps to simplifying fractions

1. Find the GCD (or HCF) of numerator and denominator
   GCD of 8720 and 420 is 20
2. Divide both the numerator and denominator by the GCD
   8720 ÷ 20/420 ÷ 20
3. Reduced fraction: 436/21
   Therefore, 8720/420 simplified to lowest terms is 436/21.

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