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Add 18/8 and 84/28

1st number: 2 2/8, 2nd number: 3 0/28

18/8 + 84/28 is 21/4.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 8 and 28 is 56

    Next, find the equivalent fraction of both fractional numbers with denominator 56
  2. For the 1st fraction, since 8 × 7 = 56,
    18/8 = 18 × 7/8 × 7 = 126/56
  3. Likewise, for the 2nd fraction, since 28 × 2 = 56,
    84/28 = 84 × 2/28 × 2 = 168/56
  4. Add the two like fractions:
    126/56 + 168/56 = 126 + 168/56 = 294/56
  5. 294/56 simplified gives 21/4
  6. So, 18/8 + 84/28 = 21/4
    In mixed form: 51/4

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