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Add 30/54 and 8/42

30/54 + 8/42 is 47/63.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 54 and 42 is 378
  2. For the 1st fraction, since 54 × 7 = 378,
    30/54 = 30 × 7/54 × 7 = 210/378
  3. Likewise, for the 2nd fraction, since 42 × 9 = 378,
    8/42 = 8 × 9/42 × 9 = 72/378
  4. Add the two fractions:
    210/378 + 72/378 = 210 + 72/378 = 282/378
  5. After reducing the fraction, the answer is 47/63

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