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Subtract 4/5 from 18/98

18/98 - 4/5 is -151/245.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 98 and 5 is 490

    Next, find the equivalent fraction of both fractional numbers with denominator 490
  2. For the 1st fraction, since 98 × 5 = 490,
    18/98 = 18 × 5/98 × 5 = 90/490
  3. Likewise, for the 2nd fraction, since 5 × 98 = 490,
    4/5 = 4 × 98/5 × 98 = 392/490
  4. Subtract the two like fractions:
    90/490 - 392/490 = 90 - 392/490 = -302/490
  5. After reducing the fraction, the answer is -151/245

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