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Add 3/18 and 21/54

3/18 + 21/54 is 5/9.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 18 and 54 is 54

    Next, find the equivalent fraction of both fractional numbers with denominator 54
  2. For the 1st fraction, since 18 × 3 = 54,
    3/18 = 3 × 3/18 × 3 = 9/54
  3. Likewise, for the 2nd fraction, since 54 × 1 = 54,
    21/54 = 21 × 1/54 × 1 = 21/54
  4. Add the two like fractions:
    9/54 + 21/54 = 9 + 21/54 = 30/54
  5. 30/54 simplified gives 5/9
  6. So, 3/18 + 21/54 = 5/9

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