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Add 18/45 and 12/30

18/45 + 12/30 is 4/5.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 45 and 30 is 90

    Next, find the equivalent fraction of both fractional numbers with denominator 90
  2. For the 1st fraction, since 45 × 2 = 90,
    18/45 = 18 × 2/45 × 2 = 36/90
  3. Likewise, for the 2nd fraction, since 30 × 3 = 90,
    12/30 = 12 × 3/30 × 3 = 36/90
  4. Add the two like fractions:
    36/90 + 36/90 = 36 + 36/90 = 72/90
  5. 72/90 simplified gives 4/5
  6. So, 18/45 + 12/30 = 4/5

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