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Subtract 81/56 from 40/36

1st number: 1 4/36, 2nd number: 1 25/56

40/36 - 81/56 is -169/504.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 36 and 56 is 504

    Next, find the equivalent fraction of both fractional numbers with denominator 504
  2. For the 1st fraction, since 36 × 14 = 504,
    40/36 = 40 × 14/36 × 14 = 560/504
  3. Likewise, for the 2nd fraction, since 56 × 9 = 504,
    81/56 = 81 × 9/56 × 9 = 729/504
  4. Subtract the two like fractions:
    560/504 - 729/504 = 560 - 729/504 = -169/504

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