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Subtract 1/12 from 30/70

30/70 - 1/12 is 29/84.

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,
    30/70 = 30 × 6/70 × 6 = 180/420
  3. Likewise, for the 2nd fraction, since 12 × 35 = 420,
    1/12 = 1 × 35/12 × 35 = 35/420
  4. Subtract the two like fractions:
    180/420 - 35/420 = 180 - 35/420 = 145/420
  5. After reducing the fraction, the answer is 29/84

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