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Add 28/49 and 18/81

28/49 + 18/81 is 50/63.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 49 and 81 is 3969

    Next, find the equivalent fraction of both fractional numbers with denominator 3969
  2. For the 1st fraction, since 49 × 81 = 3969,
    28/49 = 28 × 81/49 × 81 = 2268/3969
  3. Likewise, for the 2nd fraction, since 81 × 49 = 3969,
    18/81 = 18 × 49/81 × 49 = 882/3969
  4. Add the two like fractions:
    2268/3969 + 882/3969 = 2268 + 882/3969 = 3150/3969
  5. 3150/3969 simplified gives 50/63
  6. So, 28/49 + 18/81 = 50/63

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