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Subtract 15/28 from 18/10

1st number: 1 8/10, 2nd number: 15/28

18/10 - 15/28 is 177/140.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 10 and 28 is 140

    Next, find the equivalent fraction of both fractional numbers with denominator 140
  2. For the 1st fraction, since 10 × 14 = 140,
    18/10 = 18 × 14/10 × 14 = 252/140
  3. Likewise, for the 2nd fraction, since 28 × 5 = 140,
    15/28 = 15 × 5/28 × 5 = 75/140
  4. Subtract the two like fractions:
    252/140 - 75/140 = 252 - 75/140 = 177/140
  5. In mixed form: 137/140

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