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Subtract 21/63 from 15/6

1st number: 2 3/6, 2nd number: 21/63

15/6 - 21/63 is 13/6.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 6 and 63 is 126
  2. For the 1st fraction, since 6 × 21 = 126,
    15/6 = 15 × 21/6 × 21 = 315/126
  3. Likewise, for the 2nd fraction, since 63 × 2 = 126,
    21/63 = 21 × 2/63 × 2 = 42/126
  4. Subtract the two fractions:
    315/126 - 42/126 = 315 - 42/126 = 273/126
  5. After reducing the fraction, the answer is 13/6
  6. In mixed form: 21/6

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