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Add 3/90 and 15/84

3/90 + 15/84 is 89/420.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 90 and 84 is 1260

    Next, find the equivalent fraction of both fractional numbers with denominator 1260
  2. For the 1st fraction, since 90 × 14 = 1260,
    3/90 = 3 × 14/90 × 14 = 42/1260
  3. Likewise, for the 2nd fraction, since 84 × 15 = 1260,
    15/84 = 15 × 15/84 × 15 = 225/1260
  4. Add the two like fractions:
    42/1260 + 225/1260 = 42 + 225/1260 = 267/1260
  5. 267/1260 simplified gives 89/420
  6. So, 3/90 + 15/84 = 89/420

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