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Add 7/90 and 7/84

7/90 + 7/84 is 29/180.

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,
    7/90 = 7 × 14/90 × 14 = 98/1260
  3. Likewise, for the 2nd fraction, since 84 × 15 = 1260,
    7/84 = 7 × 15/84 × 15 = 105/1260
  4. Add the two like fractions:
    98/1260 + 105/1260 = 98 + 105/1260 = 203/1260
  5. 203/1260 simplified gives 29/180
  6. So, 7/90 + 7/84 = 29/180

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