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Subtract 20/16 from 1/5

1st number: 1/5, 2nd number: 1 4/16

1/5 - 20/16 is -21/20.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 5 and 16 is 80

    Next, find the equivalent fraction of both fractional numbers with denominator 80
  2. For the 1st fraction, since 5 × 16 = 80,
    1/5 = 1 × 16/5 × 16 = 16/80
  3. Likewise, for the 2nd fraction, since 16 × 5 = 80,
    20/16 = 20 × 5/16 × 5 = 100/80
  4. Subtract the two like fractions:
    16/80 - 100/80 = 16 - 100/80 = -84/80
  5. After reducing the fraction, the answer is -21/20

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