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Add 10/21 and 8/54

10/21 + 8/54 is 118/189.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 21 and 54 is 378

    Next, find the equivalent fraction of both fractional numbers with denominator 378
  2. For the 1st fraction, since 21 × 18 = 378,
    10/21 = 10 × 18/21 × 18 = 180/378
  3. Likewise, for the 2nd fraction, since 54 × 7 = 378,
    8/54 = 8 × 7/54 × 7 = 56/378
  4. Add the two like fractions:
    180/378 + 56/378 = 180 + 56/378 = 236/378
  5. 236/378 simplified gives 118/189
  6. So, 10/21 + 8/54 = 118/189

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