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Add 21/36 and 45/98

21/36 + 45/98 is 613/588.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 36 and 98 is 1764

    Next, find the equivalent fraction of both fractional numbers with denominator 1764
  2. For the 1st fraction, since 36 × 49 = 1764,
    21/36 = 21 × 49/36 × 49 = 1029/1764
  3. Likewise, for the 2nd fraction, since 98 × 18 = 1764,
    45/98 = 45 × 18/98 × 18 = 810/1764
  4. Add the two like fractions:
    1029/1764 + 810/1764 = 1029 + 810/1764 = 1839/1764
  5. 1839/1764 simplified gives 613/588
  6. So, 21/36 + 45/98 = 613/588
    In mixed form: 125/588

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