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Add 21/54 and 8/14

21/54 + 8/14 is 121/126.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 54 and 14 is 378

    Next, find the equivalent fraction of both fractional numbers with denominator 378
  2. For the 1st fraction, since 54 × 7 = 378,
    21/54 = 21 × 7/54 × 7 = 147/378
  3. Likewise, for the 2nd fraction, since 14 × 27 = 378,
    8/14 = 8 × 27/14 × 27 = 216/378
  4. Add the two like fractions:
    147/378 + 216/378 = 147 + 216/378 = 363/378
  5. 363/378 simplified gives 121/126
  6. So, 21/54 + 8/14 = 121/126

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