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Subtract 3/15 from 42/2

1st number: 21 0/2, 2nd number: 3/15

42/2 - 3/15 is 104/5.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 2 and 15 is 30
  2. For the 1st fraction, since 2 × 15 = 30,
    42/2 = 42 × 15/2 × 15 = 630/30
  3. Likewise, for the 2nd fraction, since 15 × 2 = 30,
    3/15 = 3 × 2/15 × 2 = 6/30
  4. Subtract the two fractions:
    630/30 - 6/30 = 630 - 6/30 = 624/30
  5. After reducing the fraction, the answer is 104/5
  6. In mixed form: 204/5

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