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Add 72/54 and 18/42

1st number: 1 18/54, 2nd number: 18/42

72/54 + 18/42 is 37/21.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 54 and 42 is 378
  2. For the 1st fraction, since 54 × 7 = 378,
    72/54 = 72 × 7/54 × 7 = 504/378
  3. Likewise, for the 2nd fraction, since 42 × 9 = 378,
    18/42 = 18 × 9/42 × 9 = 162/378
  4. Add the two fractions:
    504/378 + 162/378 = 504 + 162/378 = 666/378
  5. After reducing the fraction, the answer is 37/21
  6. In mixed form: 116/21

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