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Subtract 45/20 from 45/56

1st number: 45/56, 2nd number: 2 5/20

45/56 - 45/20 is -81/56.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 56 and 20 is 280

    Next, find the equivalent fraction of both fractional numbers with denominator 280
  2. For the 1st fraction, since 56 × 5 = 280,
    45/56 = 45 × 5/56 × 5 = 225/280
  3. Likewise, for the 2nd fraction, since 20 × 14 = 280,
    45/20 = 45 × 14/20 × 14 = 630/280
  4. Subtract the two like fractions:
    225/280 - 630/280 = 225 - 630/280 = -405/280
  5. After reducing the fraction, the answer is -81/56

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