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Subtract 45/16 from 3/20

1st number: 3/20, 2nd number: 2 13/16

3/20 - 45/16 is -213/80.

Steps for subtracting fractions

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

    Next, find the equivalent fraction of both fractional numbers with denominator 80
  2. For the 1st fraction, since 20 × 4 = 80,
    3/20 = 3 × 4/20 × 4 = 12/80
  3. Likewise, for the 2nd fraction, since 16 × 5 = 80,
    45/16 = 45 × 5/16 × 5 = 225/80
  4. Subtract the two like fractions:
    12/80 - 225/80 = 12 - 225/80 = -213/80

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