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Add 4/12 and 18/45

4/12 + 18/45 is 11/15.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 12 and 45 is 180
  2. For the 1st fraction, since 12 × 15 = 180,
    4/12 = 4 × 15/12 × 15 = 60/180
  3. Likewise, for the 2nd fraction, since 45 × 4 = 180,
    18/45 = 18 × 4/45 × 4 = 72/180
  4. Add the two fractions:
    60/180 + 72/180 = 60 + 72/180 = 132/180
  5. After reducing the fraction, the answer is 11/15

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