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Add 15/28 and 18/12

1st number: 15/28, 2nd number: 1 6/12

15/28 + 18/12 is 57/28.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 28 and 12 is 84

    Next, find the equivalent fraction of both fractional numbers with denominator 84
  2. For the 1st fraction, since 28 × 3 = 84,
    15/28 = 15 × 3/28 × 3 = 45/84
  3. Likewise, for the 2nd fraction, since 12 × 7 = 84,
    18/12 = 18 × 7/12 × 7 = 126/84
  4. Add the two like fractions:
    45/84 + 126/84 = 45 + 126/84 = 171/84
  5. 171/84 simplified gives 57/28
  6. So, 15/28 + 18/12 = 57/28
    In mixed form: 21/28

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