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Add 45/4 and 20/80

1st number: 11 1/4, 2nd number: 20/80

45/4 + 20/80 is 23/2.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 4 and 80 is 80

    Next, find the equivalent fraction of both fractional numbers with denominator 80
  2. For the 1st fraction, since 4 × 20 = 80,
    45/4 = 45 × 20/4 × 20 = 900/80
  3. Likewise, for the 2nd fraction, since 80 × 1 = 80,
    20/80 = 20 × 1/80 × 1 = 20/80
  4. Add the two like fractions:
    900/80 + 20/80 = 900 + 20/80 = 920/80
  5. 920/80 simplified gives 23/2
  6. So, 45/4 + 20/80 = 23/2
    In mixed form: 111/2

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