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Add 20/25 and 9/16

20/25 + 9/16 is 109/80.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 25 and 16 is 400

    Next, find the equivalent fraction of both fractional numbers with denominator 400
  2. For the 1st fraction, since 25 × 16 = 400,
    20/25 = 20 × 16/25 × 16 = 320/400
  3. Likewise, for the 2nd fraction, since 16 × 25 = 400,
    9/16 = 9 × 25/16 × 25 = 225/400
  4. Add the two like fractions:
    320/400 + 225/400 = 320 + 225/400 = 545/400
  5. 545/400 simplified gives 109/80
  6. So, 20/25 + 9/16 = 109/80
    In mixed form: 129/80

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