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Add 30/12 and 81/40

1st number: 2 6/12, 2nd number: 2 1/40

30/12 + 81/40 is 181/40.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 12 and 40 is 120
  2. For the 1st fraction, since 12 × 10 = 120,
    30/12 = 30 × 10/12 × 10 = 300/120
  3. Likewise, for the 2nd fraction, since 40 × 3 = 120,
    81/40 = 81 × 3/40 × 3 = 243/120
  4. Add the two fractions:
    300/120 + 243/120 = 300 + 243/120 = 543/120
  5. 543/120 simplified gives 181/40
  6. So, 30/12 + 81/40 = 181/40
    In mixed form: 421/40

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