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Subtract 49/54 from 45/21

1st number: 2 3/21, 2nd number: 49/54

45/21 - 49/54 is 467/378.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 21 and 54 is 378
  2. For the 1st fraction, since 21 × 18 = 378,
    45/21 = 45 × 18/21 × 18 = 810/378
  3. Likewise, for the 2nd fraction, since 54 × 7 = 378,
    49/54 = 49 × 7/54 × 7 = 343/378
  4. Subtract the two fractions:
    810/378 - 343/378 = 810 - 343/378 = 467/378
  5. In mixed form: 189/378

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