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Subtract 20/42 from 15/3

1st number: 5 0/3, 2nd number: 20/42

15/3 - 20/42 is 95/21.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 3 and 42 is 42
  2. For the 1st fraction, since 3 × 14 = 42,
    15/3 = 15 × 14/3 × 14 = 210/42
  3. Likewise, for the 2nd fraction, since 42 × 1 = 42,
    20/42 = 20 × 1/42 × 1 = 20/42
  4. Subtract the two fractions:
    210/42 - 20/42 = 210 - 20/42 = 190/42
  5. After reducing the fraction, the answer is 95/21
  6. In mixed form: 411/21

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