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Subtract 25/90 from 7/15

7/15 - 25/90 is 17/90.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 15 and 90 is 90
  2. For the 1st fraction, since 15 × 6 = 90,
    7/15 = 7 × 6/15 × 6 = 42/90
  3. Likewise, for the 2nd fraction, since 90 × 1 = 90,
    25/90 = 25 × 1/90 × 1 = 25/90
  4. Subtract the two fractions:
    42/90 - 25/90 = 42 - 25/90 = 17/90

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