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Subtract 56/28 from 1/40

1st number: 1/40, 2nd number: 2 0/28

1/40 - 56/28 is -79/40.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 40 and 28 is 280

    Next, find the equivalent fraction of both fractional numbers with denominator 280
  2. For the 1st fraction, since 40 × 7 = 280,
    1/40 = 1 × 7/40 × 7 = 7/280
  3. Likewise, for the 2nd fraction, since 28 × 10 = 280,
    56/28 = 56 × 10/28 × 10 = 560/280
  4. Subtract the two like fractions:
    7/280 - 560/280 = 7 - 560/280 = -553/280
  5. After reducing the fraction, the answer is -79/40

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