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Subtract 28/20 from 1/16

1st number: 1/16, 2nd number: 1 8/20

1/16 - 28/20 is -107/80.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 16 and 20 is 80

    Next, find the equivalent fraction of both fractional numbers with denominator 80
  2. For the 1st fraction, since 16 × 5 = 80,
    1/16 = 1 × 5/16 × 5 = 5/80
  3. Likewise, for the 2nd fraction, since 20 × 4 = 80,
    28/20 = 28 × 4/20 × 4 = 112/80
  4. Subtract the two like fractions:
    5/80 - 112/80 = 5 - 112/80 = -107/80

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