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Subtract 1/10 from 9/12

9/12 - 1/10 is 13/20.

Steps for subtracting fractions

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

    Next, find the equivalent fraction of both fractional numbers with denominator 60
  2. For the 1st fraction, since 12 × 5 = 60,
    9/12 = 9 × 5/12 × 5 = 45/60
  3. Likewise, for the 2nd fraction, since 10 × 6 = 60,
    1/10 = 1 × 6/10 × 6 = 6/60
  4. Subtract the two like fractions:
    45/60 - 6/60 = 45 - 6/60 = 39/60
  5. After reducing the fraction, the answer is 13/20

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