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Add 21/50 and 10/80

21/50 + 10/80 is 109/200.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 50 and 80 is 400

    Next, find the equivalent fraction of both fractional numbers with denominator 400
  2. For the 1st fraction, since 50 × 8 = 400,
    21/50 = 21 × 8/50 × 8 = 168/400
  3. Likewise, for the 2nd fraction, since 80 × 5 = 400,
    10/80 = 10 × 5/80 × 5 = 50/400
  4. Add the two like fractions:
    168/400 + 50/400 = 168 + 50/400 = 218/400
  5. 218/400 simplified gives 109/200
  6. So, 21/50 + 10/80 = 109/200

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