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Add 28/16 and 30/20

1st number: 1 12/16, 2nd number: 1 10/20

28/16 + 30/20 is 13/4.

Steps for adding 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,
    30/20 = 30 × 4/20 × 4 = 120/80
  4. Add the two like fractions:
    140/80 + 120/80 = 140 + 120/80 = 260/80
  5. 260/80 simplified gives 13/4
  6. So, 28/16 + 30/20 = 13/4
    In mixed form: 31/4

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