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Add 40/12 and 81/72

1st number: 3 4/12, 2nd number: 1 9/72

40/12 + 81/72 is 107/24.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 12 and 72 is 72
  2. For the 1st fraction, since 12 × 6 = 72,
    40/12 = 40 × 6/12 × 6 = 240/72
  3. Likewise, for the 2nd fraction, since 72 × 1 = 72,
    81/72 = 81 × 1/72 × 1 = 81/72
  4. Add the two fractions:
    240/72 + 81/72 = 240 + 81/72 = 321/72
  5. 321/72 simplified gives 107/24
  6. So, 40/12 + 81/72 = 107/24
    In mixed form: 411/24

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