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Subtract 15/63 from 60/42

1st number: 1 18/42, 2nd number: 15/63

60/42 - 15/63 is 25/21.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 42 and 63 is 126
  2. For the 1st fraction, since 42 × 3 = 126,
    60/42 = 60 × 3/42 × 3 = 180/126
  3. Likewise, for the 2nd fraction, since 63 × 2 = 126,
    15/63 = 15 × 2/63 × 2 = 30/126
  4. Subtract the two fractions:
    180/126 - 30/126 = 180 - 30/126 = 150/126
  5. After reducing the fraction, the answer is 25/21
  6. In mixed form: 14/21

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