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Add 21/54 and 2/12

21/54 + 2/12 is 5/9.

Steps for adding fractions

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

    Next, find the equivalent fraction of both fractional numbers with denominator 108
  2. For the 1st fraction, since 54 × 2 = 108,
    21/54 = 21 × 2/54 × 2 = 42/108
  3. Likewise, for the 2nd fraction, since 12 × 9 = 108,
    2/12 = 2 × 9/12 × 9 = 18/108
  4. Add the two like fractions:
    42/108 + 18/108 = 42 + 18/108 = 60/108
  5. 60/108 simplified gives 5/9
  6. So, 21/54 + 2/12 = 5/9

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