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Subtract 75/20 from 40/5

1st number: 8 0/5, 2nd number: 3 15/20

40/5 - 75/20 is 17/4.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 5 and 20 is 20

    Next, find the equivalent fraction of both fractional numbers with denominator 20
  2. For the 1st fraction, since 5 × 4 = 20,
    40/5 = 40 × 4/5 × 4 = 160/20
  3. Likewise, for the 2nd fraction, since 20 × 1 = 20,
    75/20 = 75 × 1/20 × 1 = 75/20
  4. Subtract the two like fractions:
    160/20 - 75/20 = 160 - 75/20 = 85/20
  5. After reducing the fraction, the answer is 17/4
  6. In mixed form: 41/4

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