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Add 18/3 and 21/15

1st number: 6 0/3, 2nd number: 1 6/15

18/3 + 21/15 is 37/5.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 3 and 15 is 15

    Next, find the equivalent fraction of both fractional numbers with denominator 15
  2. For the 1st fraction, since 3 × 5 = 15,
    18/3 = 18 × 5/3 × 5 = 90/15
  3. Likewise, for the 2nd fraction, since 15 × 1 = 15,
    21/15 = 21 × 1/15 × 1 = 21/15
  4. Add the two like fractions:
    90/15 + 21/15 = 90 + 21/15 = 111/15
  5. 111/15 simplified gives 37/5
  6. So, 18/3 + 21/15 = 37/5
    In mixed form: 72/5

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