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Subtract 9/10 from 9/4

1st number: 2 1/4, 2nd number: 9/10

9/4 - 9/10 is 27/20.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 4 and 10 is 20
  2. For the 1st fraction, since 4 × 5 = 20,
    9/4 = 9 × 5/4 × 5 = 45/20
  3. Likewise, for the 2nd fraction, since 10 × 2 = 20,
    9/10 = 9 × 2/10 × 2 = 18/20
  4. Subtract the two fractions:
    45/20 - 18/20 = 45 - 18/20 = 27/20
  5. In mixed form: 17/20

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