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Add 54/20 and 18/42

1st number: 2 14/20, 2nd number: 18/42

54/20 + 18/42 is 219/70.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 20 and 42 is 420

    Next, find the equivalent fraction of both fractional numbers with denominator 420
  2. For the 1st fraction, since 20 × 21 = 420,
    54/20 = 54 × 21/20 × 21 = 1134/420
  3. Likewise, for the 2nd fraction, since 42 × 10 = 420,
    18/42 = 18 × 10/42 × 10 = 180/420
  4. Add the two like fractions:
    1134/420 + 180/420 = 1134 + 180/420 = 1314/420
  5. 1314/420 simplified gives 219/70
  6. So, 54/20 + 18/42 = 219/70
    In mixed form: 39/70

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