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Subtract 84/54 from 9/40

1st number: 9/40, 2nd number: 1 30/54

9/40 - 84/54 is -479/360.

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,
    9/40 = 9 × 27/40 × 27 = 243/1080
  3. Likewise, for the 2nd fraction, since 54 × 20 = 1080,
    84/54 = 84 × 20/54 × 20 = 1680/1080
  4. Subtract the two like fractions:
    243/1080 - 1680/1080 = 243 - 1680/1080 = -1437/1080
  5. After reducing the fraction, the answer is -479/360

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