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Subtract 40/18 from 72/56

1st number: 1 16/56, 2nd number: 2 4/18

72/56 - 40/18 is -59/63.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 56 and 18 is 504

    Next, find the equivalent fraction of both fractional numbers with denominator 504
  2. For the 1st fraction, since 56 × 9 = 504,
    72/56 = 72 × 9/56 × 9 = 648/504
  3. Likewise, for the 2nd fraction, since 18 × 28 = 504,
    40/18 = 40 × 28/18 × 28 = 1120/504
  4. Subtract the two like fractions:
    648/504 - 1120/504 = 648 - 1120/504 = -472/504
  5. After reducing the fraction, the answer is -59/63

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