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Add 15/84 and 90/35

1st number: 15/84, 2nd number: 2 20/35

15/84 + 90/35 is 11/4.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 84 and 35 is 420

    Next, find the equivalent fraction of both fractional numbers with denominator 420
  2. For the 1st fraction, since 84 × 5 = 420,
    15/84 = 15 × 5/84 × 5 = 75/420
  3. Likewise, for the 2nd fraction, since 35 × 12 = 420,
    90/35 = 90 × 12/35 × 12 = 1080/420
  4. Add the two like fractions:
    75/420 + 1080/420 = 75 + 1080/420 = 1155/420
  5. 1155/420 simplified gives 11/4
  6. So, 15/84 + 90/35 = 11/4
    In mixed form: 23/4

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