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Add 8/28 and 15/21

8/28 + 15/21 is 1/1.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 28 and 21 is 84
  2. For the 1st fraction, since 28 × 3 = 84,
    8/28 = 8 × 3/28 × 3 = 24/84
  3. Likewise, for the 2nd fraction, since 21 × 4 = 84,
    15/21 = 15 × 4/21 × 4 = 60/84
  4. Add the two fractions:
    24/84 + 60/84 = 24 + 60/84 = 84/84
  5. After reducing the fraction, the answer is 1/1

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