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Subtract 70/40 from 40/98

1st number: 40/98, 2nd number: 1 30/40

40/98 - 70/40 is -263/196.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 98 and 40 is 1960
  2. For the 1st fraction, since 98 × 20 = 1960,
    40/98 = 40 × 20/98 × 20 = 800/1960
  3. Likewise, for the 2nd fraction, since 40 × 49 = 1960,
    70/40 = 70 × 49/40 × 49 = 3430/1960
  4. Subtract the two fractions:
    800/1960 - 3430/1960 = 800 - 3430/1960 = -2630/1960
  5. After reducing the fraction, the answer is -263/196

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