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Add 3/12 and 21/54

3/12 + 21/54 is 23/36.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 12 and 54 is 108

    Next, find the equivalent fraction of both fractional numbers with denominator 108
  2. For the 1st fraction, since 12 × 9 = 108,
    3/12 = 3 × 9/12 × 9 = 27/108
  3. Likewise, for the 2nd fraction, since 54 × 2 = 108,
    21/54 = 21 × 2/54 × 2 = 42/108
  4. Add the two like fractions:
    27/108 + 42/108 = 27 + 42/108 = 69/108
  5. 69/108 simplified gives 23/36
  6. So, 3/12 + 21/54 = 23/36

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