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Subtract 3/12 from 6/70

6/70 - 3/12 is -23/140.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 70 and 12 is 420

    Next, find the equivalent fraction of both fractional numbers with denominator 420
  2. For the 1st fraction, since 70 × 6 = 420,
    6/70 = 6 × 6/70 × 6 = 36/420
  3. Likewise, for the 2nd fraction, since 12 × 35 = 420,
    3/12 = 3 × 35/12 × 35 = 105/420
  4. Subtract the two like fractions:
    36/420 - 105/420 = 36 - 105/420 = -69/420
  5. After reducing the fraction, the answer is -23/140

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