Answers

The simplest form of -87/1440 is -29/480.

Steps to simplifying fractions

1. Find the GCD (or HCF) of the absolute values of both numerator and denominator
   GCD of 87 and 1440 is 3
2. Divide both the numerator and denominator by the GCD
   -87 ÷ 3/1440 ÷ 3
3. Reduced fraction: -29/480
   Therefore, -87/1440 simplified to lowest terms is -29/480.

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