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Subtract 45/20 from 16/5

1st number: 3 1/5, 2nd number: 2 5/20

16/5 - 45/20 is 19/20.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 5 and 20 is 20

    Next, find the equivalent fraction of both fractional numbers with denominator 20
  2. For the 1st fraction, since 5 × 4 = 20,
    16/5 = 16 × 4/5 × 4 = 64/20
  3. Likewise, for the 2nd fraction, since 20 × 1 = 20,
    45/20 = 45 × 1/20 × 1 = 45/20
  4. Subtract the two like fractions:
    64/20 - 45/20 = 64 - 45/20 = 19/20

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