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Add 72/15 and 3/18

1st number: 4 12/15, 2nd number: 3/18

72/15 + 3/18 is 149/30.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 15 and 18 is 90
  2. For the 1st fraction, since 15 × 6 = 90,
    72/15 = 72 × 6/15 × 6 = 432/90
  3. Likewise, for the 2nd fraction, since 18 × 5 = 90,
    3/18 = 3 × 5/18 × 5 = 15/90
  4. Add the two fractions:
    432/90 + 15/90 = 432 + 15/90 = 447/90
  5. 447/90 simplified gives 149/30
  6. So, 72/15 + 3/18 = 149/30
    In mixed form: 429/30

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