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Add 63/4 and 18/42

1st number: 15 3/4, 2nd number: 18/42

63/4 + 18/42 is 453/28.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 4 and 42 is 84

    Next, find the equivalent fraction of both fractional numbers with denominator 84
  2. For the 1st fraction, since 4 × 21 = 84,
    63/4 = 63 × 21/4 × 21 = 1323/84
  3. Likewise, for the 2nd fraction, since 42 × 2 = 84,
    18/42 = 18 × 2/42 × 2 = 36/84
  4. Add the two like fractions:
    1323/84 + 36/84 = 1323 + 36/84 = 1359/84
  5. 1359/84 simplified gives 453/28
  6. So, 63/4 + 18/42 = 453/28
    In mixed form: 165/28

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