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Subtract 12/70 from 3/15

3/15 - 12/70 is 1/35.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 15 and 70 is 210

    Next, find the equivalent fraction of both fractional numbers with denominator 210
  2. For the 1st fraction, since 15 × 14 = 210,
    3/15 = 3 × 14/15 × 14 = 42/210
  3. Likewise, for the 2nd fraction, since 70 × 3 = 210,
    12/70 = 12 × 3/70 × 3 = 36/210
  4. Subtract the two like fractions:
    42/210 - 36/210 = 42 - 36/210 = 6/210
  5. After reducing the fraction, the answer is 1/35

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