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Subtract 70/80 from 8/98

8/98 - 70/80 is -311/392.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 98 and 80 is 3920
  2. For the 1st fraction, since 98 × 40 = 3920,
    8/98 = 8 × 40/98 × 40 = 320/3920
  3. Likewise, for the 2nd fraction, since 80 × 49 = 3920,
    70/80 = 70 × 49/80 × 49 = 3430/3920
  4. Subtract the two fractions:
    320/3920 - 3430/3920 = 320 - 3430/3920 = -3110/3920
  5. After reducing the fraction, the answer is -311/392

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