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Subtract 21/8 from 8/98

1st number: 8/98, 2nd number: 2 5/8

8/98 - 21/8 is -997/392.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 98 and 8 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 8 × 49 = 392,
    21/8 = 21 × 49/8 × 49 = 1029/392
  4. Subtract the two fractions:
    32/392 - 1029/392 = 32 - 1029/392 = -997/392

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