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Subtract 6/40 from 90/98

90/98 - 6/40 is 753/980.

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,
    90/98 = 90 × 20/98 × 20 = 1800/1960
  3. Likewise, for the 2nd fraction, since 40 × 49 = 1960,
    6/40 = 6 × 49/40 × 49 = 294/1960
  4. Subtract the two fractions:
    1800/1960 - 294/1960 = 1800 - 294/1960 = 1506/1960
  5. After reducing the fraction, the answer is 753/980

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