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Add 12/28 and 1/45

12/28 + 1/45 is 142/315.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 28 and 45 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 45 × 28 = 1260,
    1/45 = 1 × 28/45 × 28 = 28/1260
  4. Add the two like fractions:
    540/1260 + 28/1260 = 540 + 28/1260 = 568/1260
  5. 568/1260 simplified gives 142/315
  6. So, 12/28 + 1/45 = 142/315

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