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Add 10/18 and 40/21

1st number: 10/18, 2nd number: 1 19/21

10/18 + 40/21 is 155/63.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 18 and 21 is 126
  2. For the 1st fraction, since 18 × 7 = 126,
    10/18 = 10 × 7/18 × 7 = 70/126
  3. Likewise, for the 2nd fraction, since 21 × 6 = 126,
    40/21 = 40 × 6/21 × 6 = 240/126
  4. Add the two fractions:
    70/126 + 240/126 = 70 + 240/126 = 310/126
  5. After reducing the fraction, the answer is 155/63
  6. In mixed form: 229/63

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