Answers

The simplest form of -165/378 is -55/126.

Steps to simplifying fractions

1. Find the GCD (or HCF) of the absolute values of both numerator and denominator
   GCD of 165 and 378 is 3
2. Divide both the numerator and denominator by the GCD
   -165 ÷ 3/378 ÷ 3
3. Reduced fraction: -55/126
   Therefore, -165/378 simplified to lowest terms is -55/126.

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