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Add 6/28 and 12/90

6/28 + 12/90 is 73/210.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 28 and 90 is 1260
  2. For the 1st fraction, since 28 × 45 = 1260,
    6/28 = 6 × 45/28 × 45 = 270/1260
  3. Likewise, for the 2nd fraction, since 90 × 14 = 1260,
    12/90 = 12 × 14/90 × 14 = 168/1260
  4. Add the two fractions:
    270/1260 + 168/1260 = 270 + 168/1260 = 438/1260
  5. 438/1260 simplified gives 73/210
  6. So, 6/28 + 12/90 = 73/210

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