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Subtract 1/80 from 12/36

12/36 - 1/80 is 77/240.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 36 and 80 is 720

    Next, find the equivalent fraction of both fractional numbers with denominator 720
  2. For the 1st fraction, since 36 × 20 = 720,
    12/36 = 12 × 20/36 × 20 = 240/720
  3. Likewise, for the 2nd fraction, since 80 × 9 = 720,
    1/80 = 1 × 9/80 × 9 = 9/720
  4. Subtract the two like fractions:
    240/720 - 9/720 = 240 - 9/720 = 231/720
  5. After reducing the fraction, the answer is 77/240

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