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Subtract 45/56 from 10/20

10/20 - 45/56 is -17/56.

Steps for subtracting fractions

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

    Next, find the equivalent fraction of both fractional numbers with denominator 280
  2. For the 1st fraction, since 20 × 14 = 280,
    10/20 = 10 × 14/20 × 14 = 140/280
  3. Likewise, for the 2nd fraction, since 56 × 5 = 280,
    45/56 = 45 × 5/56 × 5 = 225/280
  4. Subtract the two like fractions:
    140/280 - 225/280 = 140 - 225/280 = -85/280
  5. After reducing the fraction, the answer is -17/56

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