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Add 18/21 and 28/50

18/21 + 28/50 is 248/175.

Steps for adding fractions

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

    Next, find the equivalent fraction of both fractional numbers with denominator 1050
  2. For the 1st fraction, since 21 × 50 = 1050,
    18/21 = 18 × 50/21 × 50 = 900/1050
  3. Likewise, for the 2nd fraction, since 50 × 21 = 1050,
    28/50 = 28 × 21/50 × 21 = 588/1050
  4. Add the two like fractions:
    900/1050 + 588/1050 = 900 + 588/1050 = 1488/1050
  5. 1488/1050 simplified gives 248/175
  6. So, 18/21 + 28/50 = 248/175
    In mixed form: 173/175

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