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Subtract 20/98 from 15/56

15/56 - 20/98 is 25/392.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 56 and 98 is 392

    Next, find the equivalent fraction of both fractional numbers with denominator 392
  2. For the 1st fraction, since 56 × 7 = 392,
    15/56 = 15 × 7/56 × 7 = 105/392
  3. Likewise, for the 2nd fraction, since 98 × 4 = 392,
    20/98 = 20 × 4/98 × 4 = 80/392
  4. Subtract the two like fractions:
    105/392 - 80/392 = 105 - 80/392 = 25/392

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