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Add 9/21 and 10/18

9/21 + 10/18 is 62/63.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 21 and 18 is 126

    Next, find the equivalent fraction of both fractional numbers with denominator 126
  2. For the 1st fraction, since 21 × 6 = 126,
    9/21 = 9 × 6/21 × 6 = 54/126
  3. Likewise, for the 2nd fraction, since 18 × 7 = 126,
    10/18 = 10 × 7/18 × 7 = 70/126
  4. Add the two like fractions:
    54/126 + 70/126 = 54 + 70/126 = 124/126
  5. 124/126 simplified gives 62/63
  6. So, 9/21 + 10/18 = 62/63

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