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Add 18/16 and 15/20

1st number: 1 2/16, 2nd number: 15/20

18/16 + 15/20 is 15/8.

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,
    18/16 = 18 × 5/16 × 5 = 90/80
  3. Likewise, for the 2nd fraction, since 20 × 4 = 80,
    15/20 = 15 × 4/20 × 4 = 60/80
  4. Add the two like fractions:
    90/80 + 60/80 = 90 + 60/80 = 150/80
  5. 150/80 simplified gives 15/8
  6. So, 18/16 + 15/20 = 15/8
    In mixed form: 17/8

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