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Subtract 20/56 from 54/40

1st number: 1 14/40, 2nd number: 20/56

54/40 - 20/56 is 139/140.

Steps for subtracting fractions

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

    Next, find the equivalent fraction of both fractional numbers with denominator 280
  2. For the 1st fraction, since 40 × 7 = 280,
    54/40 = 54 × 7/40 × 7 = 378/280
  3. Likewise, for the 2nd fraction, since 56 × 5 = 280,
    20/56 = 20 × 5/56 × 5 = 100/280
  4. Subtract the two like fractions:
    378/280 - 100/280 = 378 - 100/280 = 278/280
  5. After reducing the fraction, the answer is 139/140

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