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Add 15/42 and 21/9

1st number: 15/42, 2nd number: 2 3/9

15/42 + 21/9 is 113/42.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 42 and 9 is 126

    Next, find the equivalent fraction of both fractional numbers with denominator 126
  2. For the 1st fraction, since 42 × 3 = 126,
    15/42 = 15 × 3/42 × 3 = 45/126
  3. Likewise, for the 2nd fraction, since 9 × 14 = 126,
    21/9 = 21 × 14/9 × 14 = 294/126
  4. Add the two like fractions:
    45/126 + 294/126 = 45 + 294/126 = 339/126
  5. 339/126 simplified gives 113/42
  6. So, 15/42 + 21/9 = 113/42
    In mixed form: 229/42

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