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Add 84/18 and 4/72

1st number: 4 12/18, 2nd number: 4/72

84/18 + 4/72 is 85/18.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 18 and 72 is 72

    Next, find the equivalent fraction of both fractional numbers with denominator 72
  2. For the 1st fraction, since 18 × 4 = 72,
    84/18 = 84 × 4/18 × 4 = 336/72
  3. Likewise, for the 2nd fraction, since 72 × 1 = 72,
    4/72 = 4 × 1/72 × 1 = 4/72
  4. Add the two like fractions:
    336/72 + 4/72 = 336 + 4/72 = 340/72
  5. 340/72 simplified gives 85/18
  6. So, 84/18 + 4/72 = 85/18
    In mixed form: 413/18

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