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Add 28/45 and 21/27

28/45 + 21/27 is 7/5.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 45 and 27 is 135

    Next, find the equivalent fraction of both fractional numbers with denominator 135
  2. For the 1st fraction, since 45 × 3 = 135,
    28/45 = 28 × 3/45 × 3 = 84/135
  3. Likewise, for the 2nd fraction, since 27 × 5 = 135,
    21/27 = 21 × 5/27 × 5 = 105/135
  4. Add the two like fractions:
    84/135 + 105/135 = 84 + 105/135 = 189/135
  5. 189/135 simplified gives 7/5
  6. So, 28/45 + 21/27 = 7/5
    In mixed form: 12/5

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