Answers

The simplest form of -2151/1890 is -239/210.

Steps to simplifying fractions

1. Find the GCD (or HCF) of the absolute values of both numerator and denominator
   GCD of 2151 and 1890 is 9
2. Divide both the numerator and denominator by the GCD
   -2151 ÷ 9/1890 ÷ 9
3. Reduced fraction: -239/210
   Therefore, -2151/1890 simplified to lowest terms is -239/210.

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