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Add 81/20 and 16/30

1st number: 4 1/20, 2nd number: 16/30

81/20 + 16/30 is 55/12.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 20 and 30 is 60

    Next, find the equivalent fraction of both fractional numbers with denominator 60
  2. For the 1st fraction, since 20 × 3 = 60,
    81/20 = 81 × 3/20 × 3 = 243/60
  3. Likewise, for the 2nd fraction, since 30 × 2 = 60,
    16/30 = 16 × 2/30 × 2 = 32/60
  4. Add the two like fractions:
    243/60 + 32/60 = 243 + 32/60 = 275/60
  5. 275/60 simplified gives 55/12
  6. So, 81/20 + 16/30 = 55/12
    In mixed form: 47/12

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