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Subtract 3/12 from 70/90

70/90 - 3/12 is 19/36.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 90 and 12 is 180

    Next, find the equivalent fraction of both fractional numbers with denominator 180
  2. For the 1st fraction, since 90 × 2 = 180,
    70/90 = 70 × 2/90 × 2 = 140/180
  3. Likewise, for the 2nd fraction, since 12 × 15 = 180,
    3/12 = 3 × 15/12 × 15 = 45/180
  4. Subtract the two like fractions:
    140/180 - 45/180 = 140 - 45/180 = 95/180
  5. After reducing the fraction, the answer is 19/36

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