Answers

The simplest form of -168/320 is -21/40.

Steps to simplifying fractions

1. Find the GCD (or HCF) of the absolute values of both numerator and denominator
   GCD of 168 and 320 is 8
2. Divide both the numerator and denominator by the GCD
   -168 ÷ 8/320 ÷ 8
3. Reduced fraction: -21/40
   Therefore, -168/320 simplified to lowest terms is -21/40.

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