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Subtract 1/63 from 20/15

1st number: 1 5/15, 2nd number: 1/63

20/15 - 1/63 is 83/63.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 15 and 63 is 315
  2. For the 1st fraction, since 15 × 21 = 315,
    20/15 = 20 × 21/15 × 21 = 420/315
  3. Likewise, for the 2nd fraction, since 63 × 5 = 315,
    1/63 = 1 × 5/63 × 5 = 5/315
  4. Subtract the two fractions:
    420/315 - 5/315 = 420 - 5/315 = 415/315
  5. After reducing the fraction, the answer is 83/63
  6. In mixed form: 120/63

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