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Subtract 21/42 from 56/2

1st number: 28 0/2, 2nd number: 21/42

56/2 - 21/42 is 55/2.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 2 and 42 is 42

    Next, find the equivalent fraction of both fractional numbers with denominator 42
  2. For the 1st fraction, since 2 × 21 = 42,
    56/2 = 56 × 21/2 × 21 = 1176/42
  3. Likewise, for the 2nd fraction, since 42 × 1 = 42,
    21/42 = 21 × 1/42 × 1 = 21/42
  4. Subtract the two like fractions:
    1176/42 - 21/42 = 1176 - 21/42 = 1155/42
  5. After reducing the fraction, the answer is 55/2
  6. In mixed form: 271/2

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