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Subtract 9/10 from 4/15

4/15 - 9/10 is -19/30.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 15 and 10 is 30

    Next, find the equivalent fraction of both fractional numbers with denominator 30
  2. For the 1st fraction, since 15 × 2 = 30,
    4/15 = 4 × 2/15 × 2 = 8/30
  3. Likewise, for the 2nd fraction, since 10 × 3 = 30,
    9/10 = 9 × 3/10 × 3 = 27/30
  4. Subtract the two like fractions:
    8/30 - 27/30 = 8 - 27/30 = -19/30

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