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Subtract 30/20 from 7/2

1st number: 3 1/2, 2nd number: 1 10/20

7/2 - 30/20 is 2/1.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 2 and 20 is 20
  2. For the 1st fraction, since 2 × 10 = 20,
    7/2 = 7 × 10/2 × 10 = 70/20
  3. Likewise, for the 2nd fraction, since 20 × 1 = 20,
    30/20 = 30 × 1/20 × 1 = 30/20
  4. Subtract the two fractions:
    70/20 - 30/20 = 70 - 30/20 = 40/20
  5. After reducing the fraction, the answer is 2/1

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