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Add 10/18 and 21/54

10/18 + 21/54 is 17/18.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 18 and 54 is 54
  2. For the 1st fraction, since 18 × 3 = 54,
    10/18 = 10 × 3/18 × 3 = 30/54
  3. Likewise, for the 2nd fraction, since 54 × 1 = 54,
    21/54 = 21 × 1/54 × 1 = 21/54
  4. Add the two fractions:
    30/54 + 21/54 = 30 + 21/54 = 51/54
  5. After reducing the fraction, the answer is 17/18

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