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Subtract 2/70 from 12/20

12/20 - 2/70 is 4/7.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 20 and 70 is 140

    Next, find the equivalent fraction of both fractional numbers with denominator 140
  2. For the 1st fraction, since 20 × 7 = 140,
    12/20 = 12 × 7/20 × 7 = 84/140
  3. Likewise, for the 2nd fraction, since 70 × 2 = 140,
    2/70 = 2 × 2/70 × 2 = 4/140
  4. Subtract the two like fractions:
    84/140 - 4/140 = 84 - 4/140 = 80/140
  5. After reducing the fraction, the answer is 4/7

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