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Subtract 28/40 from 75/30

1st number: 2 15/30, 2nd number: 28/40

75/30 - 28/40 is 9/5.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 30 and 40 is 120
  2. For the 1st fraction, since 30 × 4 = 120,
    75/30 = 75 × 4/30 × 4 = 300/120
  3. Likewise, for the 2nd fraction, since 40 × 3 = 120,
    28/40 = 28 × 3/40 × 3 = 84/120
  4. Subtract the two fractions:
    300/120 - 84/120 = 300 - 84/120 = 216/120
  5. After reducing the fraction, the answer is 9/5
  6. In mixed form: 14/5

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