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Subtract 27/6 from 2/21

1st number: 2/21, 2nd number: 4 3/6

2/21 - 27/6 is -185/42.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 21 and 6 is 42

    Next, find the equivalent fraction of both fractional numbers with denominator 42
  2. For the 1st fraction, since 21 × 2 = 42,
    2/21 = 2 × 2/21 × 2 = 4/42
  3. Likewise, for the 2nd fraction, since 6 × 7 = 42,
    27/6 = 27 × 7/6 × 7 = 189/42
  4. Subtract the two like fractions:
    4/42 - 189/42 = 4 - 189/42 = -185/42

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