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Subtract 21/42 from 63/3

1st number: 21 0/3, 2nd number: 21/42

63/3 - 21/42 is 41/2.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 3 and 42 is 42

    Next, find the equivalent fraction of both fractional numbers with denominator 42
  2. For the 1st fraction, since 3 × 14 = 42,
    63/3 = 63 × 14/3 × 14 = 882/42
  3. Likewise, for the 2nd fraction, since 42 × 1 = 42,
    21/42 = 21 × 1/42 × 1 = 21/42
  4. Subtract the two like fractions:
    882/42 - 21/42 = 882 - 21/42 = 861/42
  5. After reducing the fraction, the answer is 41/2
  6. In mixed form: 201/2

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