Answers

The simplest form of -280/2160 is -7/54.

Steps to simplifying fractions

1. Find the GCD (or HCF) of the absolute values of both numerator and denominator
   GCD of 280 and 2160 is 40
2. Divide both the numerator and denominator by the GCD
   -280 ÷ 40/2160 ÷ 40
3. Reduced fraction: -7/54
   Therefore, -280/2160 simplified to lowest terms is -7/54.

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