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Add 8/28 and 21/54

8/28 + 21/54 is 85/126.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 28 and 54 is 756

    Next, find the equivalent fraction of both fractional numbers with denominator 756
  2. For the 1st fraction, since 28 × 27 = 756,
    8/28 = 8 × 27/28 × 27 = 216/756
  3. Likewise, for the 2nd fraction, since 54 × 14 = 756,
    21/54 = 21 × 14/54 × 14 = 294/756
  4. Add the two like fractions:
    216/756 + 294/756 = 216 + 294/756 = 510/756
  5. 510/756 simplified gives 85/126
  6. So, 8/28 + 21/54 = 85/126

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