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Add 15/2 and 45/80

1st number: 7 1/2, 2nd number: 45/80

15/2 + 45/80 is 129/16.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 2 and 80 is 80

    Next, find the equivalent fraction of both fractional numbers with denominator 80
  2. For the 1st fraction, since 2 × 40 = 80,
    15/2 = 15 × 40/2 × 40 = 600/80
  3. Likewise, for the 2nd fraction, since 80 × 1 = 80,
    45/80 = 45 × 1/80 × 1 = 45/80
  4. Add the two like fractions:
    600/80 + 45/80 = 600 + 45/80 = 645/80
  5. 645/80 simplified gives 129/16
  6. So, 15/2 + 45/80 = 129/16
    In mixed form: 81/16

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