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Add 30/12 and 20/81

1st number: 2 6/12, 2nd number: 20/81

30/12 + 20/81 is 445/162.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 12 and 81 is 324
  2. For the 1st fraction, since 12 × 27 = 324,
    30/12 = 30 × 27/12 × 27 = 810/324
  3. Likewise, for the 2nd fraction, since 81 × 4 = 324,
    20/81 = 20 × 4/81 × 4 = 80/324
  4. Add the two fractions:
    810/324 + 80/324 = 810 + 80/324 = 890/324
  5. 890/324 simplified gives 445/162
  6. So, 30/12 + 20/81 = 445/162
    In mixed form: 2121/162

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