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Add 18/45 and 1/15

18/45 + 1/15 is 7/15.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 45 and 15 is 45

    Next, find the equivalent fraction of both fractional numbers with denominator 45
  2. For the 1st fraction, since 45 × 1 = 45,
    18/45 = 18 × 1/45 × 1 = 18/45
  3. Likewise, for the 2nd fraction, since 15 × 3 = 45,
    1/15 = 1 × 3/15 × 3 = 3/45
  4. Add the two like fractions:
    18/45 + 3/45 = 18 + 3/45 = 21/45
  5. 21/45 simplified gives 7/15
  6. So, 18/45 + 1/15 = 7/15

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