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Add 30/15 and 4/84

1st number: 2 0/15, 2nd number: 4/84

30/15 + 4/84 is 43/21.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 15 and 84 is 420

    Next, find the equivalent fraction of both fractional numbers with denominator 420
  2. For the 1st fraction, since 15 × 28 = 420,
    30/15 = 30 × 28/15 × 28 = 840/420
  3. Likewise, for the 2nd fraction, since 84 × 5 = 420,
    4/84 = 4 × 5/84 × 5 = 20/420
  4. Add the two like fractions:
    840/420 + 20/420 = 840 + 20/420 = 860/420
  5. 860/420 simplified gives 43/21
  6. So, 30/15 + 4/84 = 43/21
    In mixed form: 21/21

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