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Add 7/2 and 20/81

1st number: 3 1/2, 2nd number: 20/81

7/2 + 20/81 is 607/162.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 2 and 81 is 162
  2. For the 1st fraction, since 2 × 81 = 162,
    7/2 = 7 × 81/2 × 81 = 567/162
  3. Likewise, for the 2nd fraction, since 81 × 2 = 162,
    20/81 = 20 × 2/81 × 2 = 40/162
  4. Add the two fractions:
    567/162 + 40/162 = 567 + 40/162 = 607/162
  5. In mixed form: 3121/162

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