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Add 90/7 and 84/36

1st number: 12 6/7, 2nd number: 2 12/36

90/7 + 84/36 is 319/21.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 7 and 36 is 252

    Next, find the equivalent fraction of both fractional numbers with denominator 252
  2. For the 1st fraction, since 7 × 36 = 252,
    90/7 = 90 × 36/7 × 36 = 3240/252
  3. Likewise, for the 2nd fraction, since 36 × 7 = 252,
    84/36 = 84 × 7/36 × 7 = 588/252
  4. Add the two like fractions:
    3240/252 + 588/252 = 3240 + 588/252 = 3828/252
  5. 3828/252 simplified gives 319/21
  6. So, 90/7 + 84/36 = 319/21
    In mixed form: 154/21

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