Answers

The simplest form of -686/240 is -343/120.

Steps to simplifying fractions

1. Find the GCD (or HCF) of the absolute values of both numerator and denominator
   GCD of 686 and 240 is 2
2. Divide both the numerator and denominator by the GCD
   -686 ÷ 2/240 ÷ 2
3. Reduced fraction: -343/120
   Therefore, -686/240 simplified to lowest terms is -343/120.

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