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Subtract 9/80 from 12/45

12/45 - 9/80 is 37/240.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 45 and 80 is 720

    Next, find the equivalent fraction of both fractional numbers with denominator 720
  2. For the 1st fraction, since 45 × 16 = 720,
    12/45 = 12 × 16/45 × 16 = 192/720
  3. Likewise, for the 2nd fraction, since 80 × 9 = 720,
    9/80 = 9 × 9/80 × 9 = 81/720
  4. Subtract the two like fractions:
    192/720 - 81/720 = 192 - 81/720 = 111/720
  5. After reducing the fraction, the answer is 37/240

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