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Subtract 3/5 from 20/80

20/80 - 3/5 is -7/20.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 80 and 5 is 80

    Next, find the equivalent fraction of both fractional numbers with denominator 80
  2. For the 1st fraction, since 80 × 1 = 80,
    20/80 = 20 × 1/80 × 1 = 20/80
  3. Likewise, for the 2nd fraction, since 5 × 16 = 80,
    3/5 = 3 × 16/5 × 16 = 48/80
  4. Subtract the two like fractions:
    20/80 - 48/80 = 20 - 48/80 = -28/80
  5. After reducing the fraction, the answer is -7/20

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