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Add 20/50 and 49/80

20/50 + 49/80 is 81/80.

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,
    20/50 = 20 × 8/50 × 8 = 160/400
  3. Likewise, for the 2nd fraction, since 80 × 5 = 400,
    49/80 = 49 × 5/80 × 5 = 245/400
  4. Add the two like fractions:
    160/400 + 245/400 = 160 + 245/400 = 405/400
  5. 405/400 simplified gives 81/80
  6. So, 20/50 + 49/80 = 81/80
    In mixed form: 11/80

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