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Add 28/50 and 12/21

28/50 + 12/21 is 198/175.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 50 and 21 is 1050

    Next, find the equivalent fraction of both fractional numbers with denominator 1050
  2. For the 1st fraction, since 50 × 21 = 1050,
    28/50 = 28 × 21/50 × 21 = 588/1050
  3. Likewise, for the 2nd fraction, since 21 × 50 = 1050,
    12/21 = 12 × 50/21 × 50 = 600/1050
  4. Add the two like fractions:
    588/1050 + 600/1050 = 588 + 600/1050 = 1188/1050
  5. 1188/1050 simplified gives 198/175
  6. So, 28/50 + 12/21 = 198/175
    In mixed form: 123/175

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