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Add 80/36 and 81/72

1st number: 2 8/36, 2nd number: 1 9/72

80/36 + 81/72 is 241/72.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 36 and 72 is 72
  2. For the 1st fraction, since 36 × 2 = 72,
    80/36 = 80 × 2/36 × 2 = 160/72
  3. Likewise, for the 2nd fraction, since 72 × 1 = 72,
    81/72 = 81 × 1/72 × 1 = 81/72
  4. Add the two fractions:
    160/72 + 81/72 = 160 + 81/72 = 241/72
  5. So, 80/36 + 81/72 = 241/72
    In mixed form: 325/72

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