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Subtract 49/45 from 45/21

1st number: 2 3/21, 2nd number: 1 4/45

45/21 - 49/45 is 332/315.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 21 and 45 is 315
  2. For the 1st fraction, since 21 × 15 = 315,
    45/21 = 45 × 15/21 × 15 = 675/315
  3. Likewise, for the 2nd fraction, since 45 × 7 = 315,
    49/45 = 49 × 7/45 × 7 = 343/315
  4. Subtract the two fractions:
    675/315 - 343/315 = 675 - 343/315 = 332/315
  5. In mixed form: 117/315

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