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Add 18/30 and 25/28

18/30 + 25/28 is 209/140.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 30 and 28 is 420
  2. For the 1st fraction, since 30 × 14 = 420,
    18/30 = 18 × 14/30 × 14 = 252/420
  3. Likewise, for the 2nd fraction, since 28 × 15 = 420,
    25/28 = 25 × 15/28 × 15 = 375/420
  4. Add the two fractions:
    252/420 + 375/420 = 252 + 375/420 = 627/420
  5. After reducing the fraction, the answer is 209/140
  6. In mixed form: 169/140

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