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Subtract 21/16 from 16/5

1st number: 3 1/5, 2nd number: 1 5/16

16/5 - 21/16 is 151/80.

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,
    16/5 = 16 × 16/5 × 16 = 256/80
  3. Likewise, for the 2nd fraction, since 16 × 5 = 80,
    21/16 = 21 × 5/16 × 5 = 105/80
  4. Subtract the two like fractions:
    256/80 - 105/80 = 256 - 105/80 = 151/80
  5. In mixed form: 171/80

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