Answers

The simplest form of -78/672 is -13/112.

Steps to simplifying fractions

1. Find the GCD (or HCF) of the absolute values of both numerator and denominator
   GCD of 78 and 672 is 6
2. Divide both the numerator and denominator by the GCD
   -78 ÷ 6/672 ÷ 6
3. Reduced fraction: -13/112
   Therefore, -78/672 simplified to lowest terms is -13/112.

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