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Add 54/15 and 12/9

1st number: 3 9/15, 2nd number: 1 3/9

54/15 + 12/9 is 74/15.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 15 and 9 is 45
  2. For the 1st fraction, since 15 × 3 = 45,
    54/15 = 54 × 3/15 × 3 = 162/45
  3. Likewise, for the 2nd fraction, since 9 × 5 = 45,
    12/9 = 12 × 5/9 × 5 = 60/45
  4. Add the two fractions:
    162/45 + 60/45 = 162 + 60/45 = 222/45
  5. 222/45 simplified gives 74/15
  6. So, 54/15 + 12/9 = 74/15
    In mixed form: 414/15

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