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Subtract 27/28 from 42/18

1st number: 2 6/18, 2nd number: 27/28

42/18 - 27/28 is 115/84.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 18 and 28 is 252

    Next, find the equivalent fraction of both fractional numbers with denominator 252
  2. For the 1st fraction, since 18 × 14 = 252,
    42/18 = 42 × 14/18 × 14 = 588/252
  3. Likewise, for the 2nd fraction, since 28 × 9 = 252,
    27/28 = 27 × 9/28 × 9 = 243/252
  4. Subtract the two like fractions:
    588/252 - 243/252 = 588 - 243/252 = 345/252
  5. After reducing the fraction, the answer is 115/84
  6. In mixed form: 131/84

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