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Subtract 49/40 from 15/56

1st number: 15/56, 2nd number: 1 9/40

15/56 - 49/40 is -67/70.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 56 and 40 is 280

    Next, find the equivalent fraction of both fractional numbers with denominator 280
  2. For the 1st fraction, since 56 × 5 = 280,
    15/56 = 15 × 5/56 × 5 = 75/280
  3. Likewise, for the 2nd fraction, since 40 × 7 = 280,
    49/40 = 49 × 7/40 × 7 = 343/280
  4. Subtract the two like fractions:
    75/280 - 343/280 = 75 - 343/280 = -268/280
  5. After reducing the fraction, the answer is -67/70

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