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Add 7/15 and 30/84

7/15 + 30/84 is 173/210.

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,
    7/15 = 7 × 28/15 × 28 = 196/420
  3. Likewise, for the 2nd fraction, since 84 × 5 = 420,
    30/84 = 30 × 5/84 × 5 = 150/420
  4. Add the two like fractions:
    196/420 + 150/420 = 196 + 150/420 = 346/420
  5. 346/420 simplified gives 173/210
  6. So, 7/15 + 30/84 = 173/210

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