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Add 72/18 and 7/84

1st number: 4 0/18, 2nd number: 7/84

72/18 + 7/84 is 49/12.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 18 and 84 is 252

    Next, find the equivalent fraction of both fractional numbers with denominator 252
  2. For the 1st fraction, since 18 × 14 = 252,
    72/18 = 72 × 14/18 × 14 = 1008/252
  3. Likewise, for the 2nd fraction, since 84 × 3 = 252,
    7/84 = 7 × 3/84 × 3 = 21/252
  4. Add the two like fractions:
    1008/252 + 21/252 = 1008 + 21/252 = 1029/252
  5. 1029/252 simplified gives 49/12
  6. So, 72/18 + 7/84 = 49/12
    In mixed form: 41/12

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