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Add 81/80 and 1/45

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

81/80 + 1/45 is 149/144.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 80 and 45 is 720

    Next, find the equivalent fraction of both fractional numbers with denominator 720
  2. For the 1st fraction, since 80 × 9 = 720,
    81/80 = 81 × 9/80 × 9 = 729/720
  3. Likewise, for the 2nd fraction, since 45 × 16 = 720,
    1/45 = 1 × 16/45 × 16 = 16/720
  4. Add the two like fractions:
    729/720 + 16/720 = 729 + 16/720 = 745/720
  5. 745/720 simplified gives 149/144
  6. So, 81/80 + 1/45 = 149/144
    In mixed form: 15/144

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