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Add 45/4 and 80/5

1st number: 11 1/4, 2nd number: 16 0/5

45/4 + 80/5 is 109/4.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 4 and 5 is 20

    Next, find the equivalent fraction of both fractional numbers with denominator 20
  2. For the 1st fraction, since 4 × 5 = 20,
    45/4 = 45 × 5/4 × 5 = 225/20
  3. Likewise, for the 2nd fraction, since 5 × 4 = 20,
    80/5 = 80 × 4/5 × 4 = 320/20
  4. Add the two like fractions:
    225/20 + 320/20 = 225 + 320/20 = 545/20
  5. 545/20 simplified gives 109/4
  6. So, 45/4 + 80/5 = 109/4
    In mixed form: 271/4

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