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Subtract 8/54 from 12/40

12/40 - 8/54 is 41/270.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 40 and 54 is 1080

    Next, find the equivalent fraction of both fractional numbers with denominator 1080
  2. For the 1st fraction, since 40 × 27 = 1080,
    12/40 = 12 × 27/40 × 27 = 324/1080
  3. Likewise, for the 2nd fraction, since 54 × 20 = 1080,
    8/54 = 8 × 20/54 × 20 = 160/1080
  4. Subtract the two like fractions:
    324/1080 - 160/1080 = 324 - 160/1080 = 164/1080
  5. After reducing the fraction, the answer is 41/270

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