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Add 10/54 and 8/21

10/54 + 8/21 is 107/189.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 54 and 21 is 378
  2. For the 1st fraction, since 54 × 7 = 378,
    10/54 = 10 × 7/54 × 7 = 70/378
  3. Likewise, for the 2nd fraction, since 21 × 18 = 378,
    8/21 = 8 × 18/21 × 18 = 144/378
  4. Add the two fractions:
    70/378 + 144/378 = 70 + 144/378 = 214/378
  5. After reducing the fraction, the answer is 107/189

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