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Add 45/36 and 81/80

1st number: 1 9/36, 2nd number: 1 1/80

45/36 + 81/80 is 181/80.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 36 and 80 is 720

    Next, find the equivalent fraction of both fractional numbers with denominator 720
  2. For the 1st fraction, since 36 × 20 = 720,
    45/36 = 45 × 20/36 × 20 = 900/720
  3. Likewise, for the 2nd fraction, since 80 × 9 = 720,
    81/80 = 81 × 9/80 × 9 = 729/720
  4. Add the two like fractions:
    900/720 + 729/720 = 900 + 729/720 = 1629/720
  5. 1629/720 simplified gives 181/80
  6. So, 45/36 + 81/80 = 181/80
    In mixed form: 221/80

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