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Add 21/18 and 90/98

1st number: 1 3/18, 2nd number: 90/98

21/18 + 90/98 is 613/294.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 18 and 98 is 882
  2. For the 1st fraction, since 18 × 49 = 882,
    21/18 = 21 × 49/18 × 49 = 1029/882
  3. Likewise, for the 2nd fraction, since 98 × 9 = 882,
    90/98 = 90 × 9/98 × 9 = 810/882
  4. Add the two fractions:
    1029/882 + 810/882 = 1029 + 810/882 = 1839/882
  5. After reducing the fraction, the answer is 613/294
  6. In mixed form: 225/294

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