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Add 12/8 and 84/20

1st number: 1 4/8, 2nd number: 4 4/20

12/8 + 84/20 is 57/10.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 8 and 20 is 40
  2. For the 1st fraction, since 8 × 5 = 40,
    12/8 = 12 × 5/8 × 5 = 60/40
  3. Likewise, for the 2nd fraction, since 20 × 2 = 40,
    84/20 = 84 × 2/20 × 2 = 168/40
  4. Add the two fractions:
    60/40 + 168/40 = 60 + 168/40 = 228/40
  5. After reducing the fraction, the answer is 57/10
  6. In mixed form: 57/10

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