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Subtract 42/54 from 20/3

1st number: 6 2/3, 2nd number: 42/54

20/3 - 42/54 is 53/9.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 3 and 54 is 54
  2. For the 1st fraction, since 3 × 18 = 54,
    20/3 = 20 × 18/3 × 18 = 360/54
  3. Likewise, for the 2nd fraction, since 54 × 1 = 54,
    42/54 = 42 × 1/54 × 1 = 42/54
  4. Subtract the two fractions:
    360/54 - 42/54 = 360 - 42/54 = 318/54
  5. After reducing the fraction, the answer is 53/9
  6. In mixed form: 58/9

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