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Subtract 21/54 from 49/20

1st number: 2 9/20, 2nd number: 21/54

49/20 - 21/54 is 371/180.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 20 and 54 is 540

    Next, find the equivalent fraction of both fractional numbers with denominator 540
  2. For the 1st fraction, since 20 × 27 = 540,
    49/20 = 49 × 27/20 × 27 = 1323/540
  3. Likewise, for the 2nd fraction, since 54 × 10 = 540,
    21/54 = 21 × 10/54 × 10 = 210/540
  4. Subtract the two like fractions:
    1323/540 - 210/540 = 1323 - 210/540 = 1113/540
  5. After reducing the fraction, the answer is 371/180
  6. In mixed form: 211/180

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