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Add 80/4 and 45/12

1st number: 20 0/4, 2nd number: 3 9/12

80/4 + 45/12 is 95/4.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 4 and 12 is 12

    Next, find the equivalent fraction of both fractional numbers with denominator 12
  2. For the 1st fraction, since 4 × 3 = 12,
    80/4 = 80 × 3/4 × 3 = 240/12
  3. Likewise, for the 2nd fraction, since 12 × 1 = 12,
    45/12 = 45 × 1/12 × 1 = 45/12
  4. Add the two like fractions:
    240/12 + 45/12 = 240 + 45/12 = 285/12
  5. 285/12 simplified gives 95/4
  6. So, 80/4 + 45/12 = 95/4
    In mixed form: 233/4

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