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Subtract 40/49 from 35/80

35/80 - 40/49 is -297/784.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 80 and 49 is 3920
  2. For the 1st fraction, since 80 × 49 = 3920,
    35/80 = 35 × 49/80 × 49 = 1715/3920
  3. Likewise, for the 2nd fraction, since 49 × 80 = 3920,
    40/49 = 40 × 80/49 × 80 = 3200/3920
  4. Subtract the two fractions:
    1715/3920 - 3200/3920 = 1715 - 3200/3920 = -1485/3920
  5. After reducing the fraction, the answer is -297/784

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