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Add 21/54 and 7/9

21/54 + 7/9 is 7/6.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 54 and 9 is 54

    Next, find the equivalent fraction of both fractional numbers with denominator 54
  2. For the 1st fraction, since 54 × 1 = 54,
    21/54 = 21 × 1/54 × 1 = 21/54
  3. Likewise, for the 2nd fraction, since 9 × 6 = 54,
    7/9 = 7 × 6/9 × 6 = 42/54
  4. Add the two like fractions:
    21/54 + 42/54 = 21 + 42/54 = 63/54
  5. 63/54 simplified gives 7/6
  6. So, 21/54 + 7/9 = 7/6
    In mixed form: 11/6

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