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Subtract 42/18 from 20/3

1st number: 6 2/3, 2nd number: 2 6/18

20/3 - 42/18 is 13/3.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 3 and 18 is 18
  2. For the 1st fraction, since 3 × 6 = 18,
    20/3 = 20 × 6/3 × 6 = 120/18
  3. Likewise, for the 2nd fraction, since 18 × 1 = 18,
    42/18 = 42 × 1/18 × 1 = 42/18
  4. Subtract the two fractions:
    120/18 - 42/18 = 120 - 42/18 = 78/18
  5. After reducing the fraction, the answer is 13/3
  6. In mixed form: 41/3

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