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Add 81/60 and 12/9

1st number: 1 21/60, 2nd number: 1 3/9

81/60 + 12/9 is 161/60.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 60 and 9 is 180

    Next, find the equivalent fraction of both fractional numbers with denominator 180
  2. For the 1st fraction, since 60 × 3 = 180,
    81/60 = 81 × 3/60 × 3 = 243/180
  3. Likewise, for the 2nd fraction, since 9 × 20 = 180,
    12/9 = 12 × 20/9 × 20 = 240/180
  4. Add the two like fractions:
    243/180 + 240/180 = 243 + 240/180 = 483/180
  5. 483/180 simplified gives 161/60
  6. So, 81/60 + 12/9 = 161/60
    In mixed form: 241/60

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