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Add 28/30 and 42/54

28/30 + 42/54 is 77/45.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 30 and 54 is 270
  2. For the 1st fraction, since 30 × 9 = 270,
    28/30 = 28 × 9/30 × 9 = 252/270
  3. Likewise, for the 2nd fraction, since 54 × 5 = 270,
    42/54 = 42 × 5/54 × 5 = 210/270
  4. Add the two fractions:
    252/270 + 210/270 = 252 + 210/270 = 462/270
  5. 462/270 simplified gives 77/45
  6. So, 28/30 + 42/54 = 77/45
    In mixed form: 132/45

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