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Subtract 25/9 from 7/15

1st number: 7/15, 2nd number: 2 7/9

7/15 - 25/9 is -104/45.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 15 and 9 is 45
  2. For the 1st fraction, since 15 × 3 = 45,
    7/15 = 7 × 3/15 × 3 = 21/45
  3. Likewise, for the 2nd fraction, since 9 × 5 = 45,
    25/9 = 25 × 5/9 × 5 = 125/45
  4. Subtract the two fractions:
    21/45 - 125/45 = 21 - 125/45 = -104/45

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