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Subtract 1/40 from 42/27

1st number: 1 15/27, 2nd number: 1/40

42/27 - 1/40 is 551/360.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 27 and 40 is 1080

    Next, find the equivalent fraction of both fractional numbers with denominator 1080
  2. For the 1st fraction, since 27 × 40 = 1080,
    42/27 = 42 × 40/27 × 40 = 1680/1080
  3. Likewise, for the 2nd fraction, since 40 × 27 = 1080,
    1/40 = 1 × 27/40 × 27 = 27/1080
  4. Subtract the two like fractions:
    1680/1080 - 27/1080 = 1680 - 27/1080 = 1653/1080
  5. After reducing the fraction, the answer is 551/360
  6. In mixed form: 1191/360

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