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Add 15/18 and 42/28

1st number: 15/18, 2nd number: 1 14/28

15/18 + 42/28 is 7/3.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 18 and 28 is 252

    Next, find the equivalent fraction of both fractional numbers with denominator 252
  2. For the 1st fraction, since 18 × 14 = 252,
    15/18 = 15 × 14/18 × 14 = 210/252
  3. Likewise, for the 2nd fraction, since 28 × 9 = 252,
    42/28 = 42 × 9/28 × 9 = 378/252
  4. Add the two like fractions:
    210/252 + 378/252 = 210 + 378/252 = 588/252
  5. 588/252 simplified gives 7/3
  6. So, 15/18 + 42/28 = 7/3
    In mixed form: 21/3

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