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Add 3/42 and 15/54

3/42 + 15/54 is 22/63.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 42 and 54 is 378

    Next, find the equivalent fraction of both fractional numbers with denominator 378
  2. For the 1st fraction, since 42 × 9 = 378,
    3/42 = 3 × 9/42 × 9 = 27/378
  3. Likewise, for the 2nd fraction, since 54 × 7 = 378,
    15/54 = 15 × 7/54 × 7 = 105/378
  4. Add the two like fractions:
    27/378 + 105/378 = 27 + 105/378 = 132/378
  5. 132/378 simplified gives 22/63
  6. So, 3/42 + 15/54 = 22/63

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