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Subtract 18/20 from 28/14

1st number: 2 0/14, 2nd number: 18/20

28/14 - 18/20 is 11/10.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 14 and 20 is 140

    Next, find the equivalent fraction of both fractional numbers with denominator 140
  2. For the 1st fraction, since 14 × 10 = 140,
    28/14 = 28 × 10/14 × 10 = 280/140
  3. Likewise, for the 2nd fraction, since 20 × 7 = 140,
    18/20 = 18 × 7/20 × 7 = 126/140
  4. Subtract the two like fractions:
    280/140 - 126/140 = 280 - 126/140 = 154/140
  5. After reducing the fraction, the answer is 11/10
  6. In mixed form: 11/10

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