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Subtract 3/42 from 49/20

1st number: 2 9/20, 2nd number: 3/42

49/20 - 3/42 is 333/140.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 20 and 42 is 420
  2. For the 1st fraction, since 20 × 21 = 420,
    49/20 = 49 × 21/20 × 21 = 1029/420
  3. Likewise, for the 2nd fraction, since 42 × 10 = 420,
    3/42 = 3 × 10/42 × 10 = 30/420
  4. Subtract the two fractions:
    1029/420 - 30/420 = 1029 - 30/420 = 999/420
  5. After reducing the fraction, the answer is 333/140
  6. In mixed form: 253/140

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