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Add 20/25 and 81/16

1st number: 20/25, 2nd number: 5 1/16

20/25 + 81/16 is 469/80.

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,
    81/16 = 81 × 25/16 × 25 = 2025/400
  4. Add the two like fractions:
    320/400 + 2025/400 = 320 + 2025/400 = 2345/400
  5. 2345/400 simplified gives 469/80
  6. So, 20/25 + 81/16 = 469/80
    In mixed form: 569/80

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