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Add 30/18 and 30/72

1st number: 1 12/18, 2nd number: 30/72

30/18 + 30/72 is 25/12.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 18 and 72 is 72
  2. For the 1st fraction, since 18 × 4 = 72,
    30/18 = 30 × 4/18 × 4 = 120/72
  3. Likewise, for the 2nd fraction, since 72 × 1 = 72,
    30/72 = 30 × 1/72 × 1 = 30/72
  4. Add the two fractions:
    120/72 + 30/72 = 120 + 30/72 = 150/72
  5. After reducing the fraction, the answer is 25/12
  6. In mixed form: 21/12

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