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Subtract 30/90 from 27/98

27/98 - 30/90 is -17/294.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 98 and 90 is 4410

    Next, find the equivalent fraction of both fractional numbers with denominator 4410
  2. For the 1st fraction, since 98 × 45 = 4410,
    27/98 = 27 × 45/98 × 45 = 1215/4410
  3. Likewise, for the 2nd fraction, since 90 × 49 = 4410,
    30/90 = 30 × 49/90 × 49 = 1470/4410
  4. Subtract the two like fractions:
    1215/4410 - 1470/4410 = 1215 - 1470/4410 = -255/4410
  5. After reducing the fraction, the answer is -17/294

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