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Add 7/28 and 9/90

7/28 + 9/90 is 7/20.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 28 and 90 is 1260

    Next, find the equivalent fraction of both fractional numbers with denominator 1260
  2. For the 1st fraction, since 28 × 45 = 1260,
    7/28 = 7 × 45/28 × 45 = 315/1260
  3. Likewise, for the 2nd fraction, since 90 × 14 = 1260,
    9/90 = 9 × 14/90 × 14 = 126/1260
  4. Add the two like fractions:
    315/1260 + 126/1260 = 315 + 126/1260 = 441/1260
  5. 441/1260 simplified gives 7/20
  6. So, 7/28 + 9/90 = 7/20

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