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Add 15/18 and 42/49

15/18 + 42/49 is 71/42.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 18 and 49 is 882

    Next, find the equivalent fraction of both fractional numbers with denominator 882
  2. For the 1st fraction, since 18 × 49 = 882,
    15/18 = 15 × 49/18 × 49 = 735/882
  3. Likewise, for the 2nd fraction, since 49 × 18 = 882,
    42/49 = 42 × 18/49 × 18 = 756/882
  4. Add the two like fractions:
    735/882 + 756/882 = 735 + 756/882 = 1491/882
  5. 1491/882 simplified gives 71/42
  6. So, 15/18 + 42/49 = 71/42
    In mixed form: 129/42

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