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Add 18/5 and 63/42

1st number: 3 3/5, 2nd number: 1 21/42

18/5 + 63/42 is 51/10.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 5 and 42 is 210

    Next, find the equivalent fraction of both fractional numbers with denominator 210
  2. For the 1st fraction, since 5 × 42 = 210,
    18/5 = 18 × 42/5 × 42 = 756/210
  3. Likewise, for the 2nd fraction, since 42 × 5 = 210,
    63/42 = 63 × 5/42 × 5 = 315/210
  4. Add the two like fractions:
    756/210 + 315/210 = 756 + 315/210 = 1071/210
  5. 1071/210 simplified gives 51/10
  6. So, 18/5 + 63/42 = 51/10
    In mixed form: 51/10

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