Answers

The simplest form of -3858/720 is -643/120.

Steps to simplifying fractions

1. Find the GCD (or HCF) of the absolute values of both numerator and denominator
   GCD of 3858 and 720 is 6
2. Divide both the numerator and denominator by the GCD
   -3858 ÷ 6/720 ÷ 6
3. Reduced fraction: -643/120
   Therefore, -3858/720 simplified to lowest terms is -643/120.

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