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Reduce -42/80 to lowest terms

The reduced form of -42/80 is -21/40

Steps to simplifying fractions

  1. Find the GCD (or HCF) of the absolute values of both numerator and denominator
    GCD of 42 and 80 is 2
  2. Divide both the numerator and denominator by the GCD
    -42 ÷ 2/80 ÷ 2
  3. Reduced fraction: -21/40

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