Answers

The simplest form of -258/490 is -129/245.

Steps to simplifying fractions

1. Find the GCD (or HCF) of the absolute values of both numerator and denominator
   GCD of 258 and 490 is 2
2. Divide both the numerator and denominator by the GCD
   -258 ÷ 2/490 ÷ 2
3. Reduced fraction: -129/245
   Therefore, -258/490 simplified to lowest terms is -129/245.

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