Answers

The simplest form of -729/180 is -81/20.

Steps to simplifying fractions

1. Find the GCD (or HCF) of the absolute values of both numerator and denominator
   GCD of 729 and 180 is 9
2. Divide both the numerator and denominator by the GCD
   -729 ÷ 9/180 ÷ 9
3. Reduced fraction: -81/20
   Therefore, -729/180 simplified to lowest terms is -81/20.

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