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Subtract 20/5 from 18/14

1st number: 1 4/14, 2nd number: 4 0/5

18/14 - 20/5 is -19/7.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 14 and 5 is 70

    Next, find the equivalent fraction of both fractional numbers with denominator 70
  2. For the 1st fraction, since 14 × 5 = 70,
    18/14 = 18 × 5/14 × 5 = 90/70
  3. Likewise, for the 2nd fraction, since 5 × 14 = 70,
    20/5 = 20 × 14/5 × 14 = 280/70
  4. Subtract the two like fractions:
    90/70 - 280/70 = 90 - 280/70 = -190/70
  5. After reducing the fraction, the answer is -19/7

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