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Add 21/18 and 18/24

1st number: 1 3/18, 2nd number: 18/24

21/18 + 18/24 is 23/12.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 18 and 24 is 72
  2. For the 1st fraction, since 18 × 4 = 72,
    21/18 = 21 × 4/18 × 4 = 84/72
  3. Likewise, for the 2nd fraction, since 24 × 3 = 72,
    18/24 = 18 × 3/24 × 3 = 54/72
  4. Add the two fractions:
    84/72 + 54/72 = 84 + 54/72 = 138/72
  5. 138/72 simplified gives 23/12
  6. So, 21/18 + 18/24 = 23/12
    In mixed form: 111/12

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