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Add 84/28 and 28/90

1st number: 3 0/28, 2nd number: 28/90

84/28 + 28/90 is 149/45.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 28 and 90 is 1260

    Next, find the equivalent fraction of both fractional numbers with denominator 1260
  2. For the 1st fraction, since 28 × 45 = 1260,
    84/28 = 84 × 45/28 × 45 = 3780/1260
  3. Likewise, for the 2nd fraction, since 90 × 14 = 1260,
    28/90 = 28 × 14/90 × 14 = 392/1260
  4. Add the two like fractions:
    3780/1260 + 392/1260 = 3780 + 392/1260 = 4172/1260
  5. 4172/1260 simplified gives 149/45
  6. So, 84/28 + 28/90 = 149/45
    In mixed form: 314/45

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