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Add 8/28 and 84/90

8/28 + 84/90 is 128/105.

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,
    8/28 = 8 × 45/28 × 45 = 360/1260
  3. Likewise, for the 2nd fraction, since 90 × 14 = 1260,
    84/90 = 84 × 14/90 × 14 = 1176/1260
  4. Add the two like fractions:
    360/1260 + 1176/1260 = 360 + 1176/1260 = 1536/1260
  5. 1536/1260 simplified gives 128/105
  6. So, 8/28 + 84/90 = 128/105
    In mixed form: 123/105

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