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Add 18/42 and 30/48

18/42 + 30/48 is 59/56.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 42 and 48 is 336
  2. For the 1st fraction, since 42 × 8 = 336,
    18/42 = 18 × 8/42 × 8 = 144/336
  3. Likewise, for the 2nd fraction, since 48 × 7 = 336,
    30/48 = 30 × 7/48 × 7 = 210/336
  4. Add the two fractions:
    144/336 + 210/336 = 144 + 210/336 = 354/336
  5. After reducing the fraction, the answer is 59/56
  6. In mixed form: 13/56

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