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Add 18/54 and 20/15

1st number: 18/54, 2nd number: 1 5/15

18/54 + 20/15 is 5/3.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 54 and 15 is 270

    Next, find the equivalent fraction of both fractional numbers with denominator 270
  2. For the 1st fraction, since 54 × 5 = 270,
    18/54 = 18 × 5/54 × 5 = 90/270
  3. Likewise, for the 2nd fraction, since 15 × 18 = 270,
    20/15 = 20 × 18/15 × 18 = 360/270
  4. Add the two like fractions:
    90/270 + 360/270 = 90 + 360/270 = 450/270
  5. 450/270 simplified gives 5/3
  6. So, 18/54 + 20/15 = 5/3
    In mixed form: 12/3

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