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Add 90/98 and 9/21

90/98 + 9/21 is 66/49.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 98 and 21 is 294

    Next, find the equivalent fraction of both fractional numbers with denominator 294
  2. For the 1st fraction, since 98 × 3 = 294,
    90/98 = 90 × 3/98 × 3 = 270/294
  3. Likewise, for the 2nd fraction, since 21 × 14 = 294,
    9/21 = 9 × 14/21 × 14 = 126/294
  4. Add the two like fractions:
    270/294 + 126/294 = 270 + 126/294 = 396/294
  5. 396/294 simplified gives 66/49
  6. So, 90/98 + 9/21 = 66/49
    In mixed form: 117/49

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