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Subtract 28/40 from 75/20

1st number: 3 15/20, 2nd number: 28/40

75/20 - 28/40 is 61/20.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 20 and 40 is 40
  2. For the 1st fraction, since 20 × 2 = 40,
    75/20 = 75 × 2/20 × 2 = 150/40
  3. Likewise, for the 2nd fraction, since 40 × 1 = 40,
    28/40 = 28 × 1/40 × 1 = 28/40
  4. Subtract the two fractions:
    150/40 - 28/40 = 150 - 28/40 = 122/40
  5. After reducing the fraction, the answer is 61/20
  6. In mixed form: 31/20

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