Answers

The simplest form of -77/840 is -11/120.

Steps to simplifying fractions

1. Find the GCD (or HCF) of the absolute values of both numerator and denominator
   GCD of 77 and 840 is 7
2. Divide both the numerator and denominator by the GCD
   -77 ÷ 7/840 ÷ 7
3. Reduced fraction: -11/120
   Therefore, -77/840 simplified to lowest terms is -11/120.

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