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Add 84/20 and 18/12

1st number: 4 4/20, 2nd number: 1 6/12

84/20 + 18/12 is 57/10.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 20 and 12 is 60
  2. For the 1st fraction, since 20 × 3 = 60,
    84/20 = 84 × 3/20 × 3 = 252/60
  3. Likewise, for the 2nd fraction, since 12 × 5 = 60,
    18/12 = 18 × 5/12 × 5 = 90/60
  4. Add the two fractions:
    252/60 + 90/60 = 252 + 90/60 = 342/60
  5. 342/60 simplified gives 57/10
  6. So, 84/20 + 18/12 = 57/10
    In mixed form: 57/10

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