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Subtract 18/8 from 1/28

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

1/28 - 18/8 is -31/14.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 28 and 8 is 56

    Next, find the equivalent fraction of both fractional numbers with denominator 56
  2. For the 1st fraction, since 28 × 2 = 56,
    1/28 = 1 × 2/28 × 2 = 2/56
  3. Likewise, for the 2nd fraction, since 8 × 7 = 56,
    18/8 = 18 × 7/8 × 7 = 126/56
  4. Subtract the two like fractions:
    2/56 - 126/56 = 2 - 126/56 = -124/56
  5. After reducing the fraction, the answer is -31/14

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