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Add 21/18 and 54/14

1st number: 1 3/18, 2nd number: 3 12/14

21/18 + 54/14 is 211/42.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 18 and 14 is 126
  2. For the 1st fraction, since 18 × 7 = 126,
    21/18 = 21 × 7/18 × 7 = 147/126
  3. Likewise, for the 2nd fraction, since 14 × 9 = 126,
    54/14 = 54 × 9/14 × 9 = 486/126
  4. Add the two fractions:
    147/126 + 486/126 = 147 + 486/126 = 633/126
  5. 633/126 simplified gives 211/42
  6. So, 21/18 + 54/14 = 211/42
    In mixed form: 51/42

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