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Add 1/9 and 21/42

1/9 + 21/42 is 11/18.

Steps for adding fractions

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

    Next, find the equivalent fraction of both fractional numbers with denominator 126
  2. For the 1st fraction, since 9 × 14 = 126,
    1/9 = 1 × 14/9 × 14 = 14/126
  3. Likewise, for the 2nd fraction, since 42 × 3 = 126,
    21/42 = 21 × 3/42 × 3 = 63/126
  4. Add the two like fractions:
    14/126 + 63/126 = 14 + 63/126 = 77/126
  5. 77/126 simplified gives 11/18
  6. So, 1/9 + 21/42 = 11/18

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