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Add 3/18 and 90/84

1st number: 3/18, 2nd number: 1 6/84

3/18 + 90/84 is 26/21.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 18 and 84 is 252

    Next, find the equivalent fraction of both fractional numbers with denominator 252
  2. For the 1st fraction, since 18 × 14 = 252,
    3/18 = 3 × 14/18 × 14 = 42/252
  3. Likewise, for the 2nd fraction, since 84 × 3 = 252,
    90/84 = 90 × 3/84 × 3 = 270/252
  4. Add the two like fractions:
    42/252 + 270/252 = 42 + 270/252 = 312/252
  5. 312/252 simplified gives 26/21
  6. So, 3/18 + 90/84 = 26/21
    In mixed form: 15/21

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