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Add 15/18 and 3/20

15/18 + 3/20 is 59/60.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 18 and 20 is 180

    Next, find the equivalent fraction of both fractional numbers with denominator 180
  2. For the 1st fraction, since 18 × 10 = 180,
    15/18 = 15 × 10/18 × 10 = 150/180
  3. Likewise, for the 2nd fraction, since 20 × 9 = 180,
    3/20 = 3 × 9/20 × 9 = 27/180
  4. Add the two like fractions:
    150/180 + 27/180 = 150 + 27/180 = 177/180
  5. 177/180 simplified gives 59/60
  6. So, 15/18 + 3/20 = 59/60

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