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Subtract 10/21 from 90/2

1st number: 45 0/2, 2nd number: 10/21

90/2 - 10/21 is 935/21.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 2 and 21 is 42
  2. For the 1st fraction, since 2 × 21 = 42,
    90/2 = 90 × 21/2 × 21 = 1890/42
  3. Likewise, for the 2nd fraction, since 21 × 2 = 42,
    10/21 = 10 × 2/21 × 2 = 20/42
  4. Subtract the two fractions:
    1890/42 - 20/42 = 1890 - 20/42 = 1870/42
  5. After reducing the fraction, the answer is 935/21
  6. In mixed form: 4411/21

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