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Subtract 2/6 from 2/21

2/21 - 2/6 is -5/21.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 21 and 6 is 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,
    2/6 = 2 × 7/6 × 7 = 14/42
  4. Subtract the two fractions:
    4/42 - 14/42 = 4 - 14/42 = -10/42
  5. After reducing the fraction, the answer is -5/21

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