Answers

The simplest form of -16/420 is -4/105.

Steps to simplifying fractions

1. Find the GCD (or HCF) of the absolute values of both numerator and denominator
   GCD of 16 and 420 is 4
2. Divide both the numerator and denominator by the GCD
   -16 ÷ 4/420 ÷ 4
3. Reduced fraction: -4/105
   Therefore, -16/420 simplified to lowest terms is -4/105.

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