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Add 28/90 and 42/54

28/90 + 42/54 is 49/45.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 90 and 54 is 270
  2. For the 1st fraction, since 90 × 3 = 270,
    28/90 = 28 × 3/90 × 3 = 84/270
  3. Likewise, for the 2nd fraction, since 54 × 5 = 270,
    42/54 = 42 × 5/54 × 5 = 210/270
  4. Add the two fractions:
    84/270 + 210/270 = 84 + 210/270 = 294/270
  5. 294/270 simplified gives 49/45
  6. So, 28/90 + 42/54 = 49/45
    In mixed form: 14/45

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