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Subtract 9/10 from 1/15

1/15 - 9/10 is -5/6.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 15 and 10 is 30
  2. For the 1st fraction, since 15 × 2 = 30,
    1/15 = 1 × 2/15 × 2 = 2/30
  3. Likewise, for the 2nd fraction, since 10 × 3 = 30,
    9/10 = 9 × 3/10 × 3 = 27/30
  4. Subtract the two fractions:
    2/30 - 27/30 = 2 - 27/30 = -25/30
  5. After reducing the fraction, the answer is -5/6

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