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Add 4/15 and 9/84

4/15 + 9/84 is 157/420.

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,
    4/15 = 4 × 28/15 × 28 = 112/420
  3. Likewise, for the 2nd fraction, since 84 × 5 = 420,
    9/84 = 9 × 5/84 × 5 = 45/420
  4. Add the two like fractions:
    112/420 + 45/420 = 112 + 45/420 = 157/420
  5. So, 4/15 + 9/84 = 157/420

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