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Add 3/18 and 90/7

1st number: 3/18, 2nd number: 12 6/7

3/18 + 90/7 is 547/42.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 18 and 7 is 126
  2. For the 1st fraction, since 18 × 7 = 126,
    3/18 = 3 × 7/18 × 7 = 21/126
  3. Likewise, for the 2nd fraction, since 7 × 18 = 126,
    90/7 = 90 × 18/7 × 18 = 1620/126
  4. Add the two fractions:
    21/126 + 1620/126 = 21 + 1620/126 = 1641/126
  5. After reducing the fraction, the answer is 547/42
  6. In mixed form: 131/42

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