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Add 12/28 and 28/90

12/28 + 28/90 is 233/315.

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,
    12/28 = 12 × 45/28 × 45 = 540/1260
  3. Likewise, for the 2nd fraction, since 90 × 14 = 1260,
    28/90 = 28 × 14/90 × 14 = 392/1260
  4. Add the two like fractions:
    540/1260 + 392/1260 = 540 + 392/1260 = 932/1260
  5. 932/1260 simplified gives 233/315
  6. So, 12/28 + 28/90 = 233/315

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