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Subtract 6/12 from 30/70

30/70 - 6/12 is -1/14.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 70 and 12 is 420
  2. For the 1st fraction, since 70 × 6 = 420,
    30/70 = 30 × 6/70 × 6 = 180/420
  3. Likewise, for the 2nd fraction, since 12 × 35 = 420,
    6/12 = 6 × 35/12 × 35 = 210/420
  4. Subtract the two fractions:
    180/420 - 210/420 = 180 - 210/420 = -30/420
  5. After reducing the fraction, the answer is -1/14

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