Answers

The simplest form of -634/420 is -317/210.

Steps to simplifying fractions

1. Find the GCD (or HCF) of the absolute values of both numerator and denominator
   GCD of 634 and 420 is 2
2. Divide both the numerator and denominator by the GCD
   -634 ÷ 2/420 ÷ 2
3. Reduced fraction: -317/210
   Therefore, -634/420 simplified to lowest terms is -317/210.

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