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Add 7/90 and 63/98

7/90 + 63/98 is 227/315.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 90 and 98 is 4410
  2. For the 1st fraction, since 90 × 49 = 4410,
    7/90 = 7 × 49/90 × 49 = 343/4410
  3. Likewise, for the 2nd fraction, since 98 × 45 = 4410,
    63/98 = 63 × 45/98 × 45 = 2835/4410
  4. Add the two fractions:
    343/4410 + 2835/4410 = 343 + 2835/4410 = 3178/4410
  5. After reducing the fraction, the answer is 227/315

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