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Subtract 9/20 from 28/16

1st number: 1 12/16, 2nd number: 9/20

28/16 - 9/20 is 13/10.

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,
    28/16 = 28 × 5/16 × 5 = 140/80
  3. Likewise, for the 2nd fraction, since 20 × 4 = 80,
    9/20 = 9 × 4/20 × 4 = 36/80
  4. Subtract the two like fractions:
    140/80 - 36/80 = 140 - 36/80 = 104/80
  5. After reducing the fraction, the answer is 13/10
  6. In mixed form: 13/10

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