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Add 18/80 and 12/8

1st number: 18/80, 2nd number: 1 4/8

18/80 + 12/8 is 69/40.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 80 and 8 is 80

    Next, find the equivalent fraction of both fractional numbers with denominator 80
  2. For the 1st fraction, since 80 × 1 = 80,
    18/80 = 18 × 1/80 × 1 = 18/80
  3. Likewise, for the 2nd fraction, since 8 × 10 = 80,
    12/8 = 12 × 10/8 × 10 = 120/80
  4. Add the two like fractions:
    18/80 + 120/80 = 18 + 120/80 = 138/80
  5. 138/80 simplified gives 69/40
  6. So, 18/80 + 12/8 = 69/40
    In mixed form: 129/40

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