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Add 21/54 and 7/36

21/54 + 7/36 is 7/12.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 54 and 36 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 36 × 3 = 108,
    7/36 = 7 × 3/36 × 3 = 21/108
  4. Add the two like fractions:
    42/108 + 21/108 = 42 + 21/108 = 63/108
  5. 63/108 simplified gives 7/12
  6. So, 21/54 + 7/36 = 7/12

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