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Subtract 70/75 from 21/2

1st number: 10 1/2, 2nd number: 70/75

21/2 - 70/75 is 287/30.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 2 and 75 is 150

    Next, find the equivalent fraction of both fractional numbers with denominator 150
  2. For the 1st fraction, since 2 × 75 = 150,
    21/2 = 21 × 75/2 × 75 = 1575/150
  3. Likewise, for the 2nd fraction, since 75 × 2 = 150,
    70/75 = 70 × 2/75 × 2 = 140/150
  4. Subtract the two like fractions:
    1575/150 - 140/150 = 1575 - 140/150 = 1435/150
  5. After reducing the fraction, the answer is 287/30
  6. In mixed form: 917/30

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