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Add 18/45 and 20/64

18/45 + 20/64 is 57/80.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 45 and 64 is 2880

    Next, find the equivalent fraction of both fractional numbers with denominator 2880
  2. For the 1st fraction, since 45 × 64 = 2880,
    18/45 = 18 × 64/45 × 64 = 1152/2880
  3. Likewise, for the 2nd fraction, since 64 × 45 = 2880,
    20/64 = 20 × 45/64 × 45 = 900/2880
  4. Add the two like fractions:
    1152/2880 + 900/2880 = 1152 + 900/2880 = 2052/2880
  5. 2052/2880 simplified gives 57/80
  6. So, 18/45 + 20/64 = 57/80

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