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Add 45/80 and 15/4

1st number: 45/80, 2nd number: 3 3/4

45/80 + 15/4 is 69/16.

Steps for adding fractions

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

    Next, find the equivalent fraction of both fractional numbers with denominator 80
  2. For the 1st fraction, since 80 × 1 = 80,
    45/80 = 45 × 1/80 × 1 = 45/80
  3. Likewise, for the 2nd fraction, since 4 × 20 = 80,
    15/4 = 15 × 20/4 × 20 = 300/80
  4. Add the two like fractions:
    45/80 + 300/80 = 45 + 300/80 = 345/80
  5. 345/80 simplified gives 69/16
  6. So, 45/80 + 15/4 = 69/16
    In mixed form: 45/16

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