Answers

The simplest form of -1780/168 is -445/42.

Steps to simplifying fractions

1. Find the GCD (or HCF) of the absolute values of both numerator and denominator
   GCD of 1780 and 168 is 4
2. Divide both the numerator and denominator by the GCD
   -1780 ÷ 4/168 ÷ 4
3. Reduced fraction: -445/42
   Therefore, -1780/168 simplified to lowest terms is -445/42.

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