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Subtract 8/12 from 3/10

3/10 - 8/12 is -11/30.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 10 and 12 is 60

    Next, find the equivalent fraction of both fractional numbers with denominator 60
  2. For the 1st fraction, since 10 × 6 = 60,
    3/10 = 3 × 6/10 × 6 = 18/60
  3. Likewise, for the 2nd fraction, since 12 × 5 = 60,
    8/12 = 8 × 5/12 × 5 = 40/60
  4. Subtract the two like fractions:
    18/60 - 40/60 = 18 - 40/60 = -22/60
  5. After reducing the fraction, the answer is -11/30

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