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Subtract 75/40 from 20/14

1st number: 1 6/14, 2nd number: 1 35/40

20/14 - 75/40 is -25/56.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 14 and 40 is 280

    Next, find the equivalent fraction of both fractional numbers with denominator 280
  2. For the 1st fraction, since 14 × 20 = 280,
    20/14 = 20 × 20/14 × 20 = 400/280
  3. Likewise, for the 2nd fraction, since 40 × 7 = 280,
    75/40 = 75 × 7/40 × 7 = 525/280
  4. Subtract the two like fractions:
    400/280 - 525/280 = 400 - 525/280 = -125/280
  5. After reducing the fraction, the answer is -25/56

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