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Subtract 18/28 from 12/10

1st number: 1 2/10, 2nd number: 18/28

12/10 - 18/28 is 39/70.

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,
    12/10 = 12 × 14/10 × 14 = 168/140
  3. Likewise, for the 2nd fraction, since 28 × 5 = 140,
    18/28 = 18 × 5/28 × 5 = 90/140
  4. Subtract the two like fractions:
    168/140 - 90/140 = 168 - 90/140 = 78/140
  5. After reducing the fraction, the answer is 39/70

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