Answers

The simplest form of -665/450 is -133/90.

Steps to simplifying fractions

1. Find the GCD (or HCF) of the absolute values of both numerator and denominator
   GCD of 665 and 450 is 5
2. Divide both the numerator and denominator by the GCD
   -665 ÷ 5/450 ÷ 5
3. Reduced fraction: -133/90
   Therefore, -665/450 simplified to lowest terms is -133/90.

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