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Subtract 7/18 from 27/80

27/80 - 7/18 is -37/720.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 80 and 18 is 720
  2. For the 1st fraction, since 80 × 9 = 720,
    27/80 = 27 × 9/80 × 9 = 243/720
  3. Likewise, for the 2nd fraction, since 18 × 40 = 720,
    7/18 = 7 × 40/18 × 40 = 280/720
  4. Subtract the two fractions:
    243/720 - 280/720 = 243 - 280/720 = -37/720

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