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Subtract 21/56 from 8/98

8/98 - 21/56 is -115/392.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 98 and 56 is 392
  2. For the 1st fraction, since 98 × 4 = 392,
    8/98 = 8 × 4/98 × 4 = 32/392
  3. Likewise, for the 2nd fraction, since 56 × 7 = 392,
    21/56 = 21 × 7/56 × 7 = 147/392
  4. Subtract the two fractions:
    32/392 - 147/392 = 32 - 147/392 = -115/392

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