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Add 21/49 and 16/90

21/49 + 16/90 is 191/315.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 49 and 90 is 4410
  2. For the 1st fraction, since 49 × 90 = 4410,
    21/49 = 21 × 90/49 × 90 = 1890/4410
  3. Likewise, for the 2nd fraction, since 90 × 49 = 4410,
    16/90 = 16 × 49/90 × 49 = 784/4410
  4. Add the two fractions:
    1890/4410 + 784/4410 = 1890 + 784/4410 = 2674/4410
  5. After reducing the fraction, the answer is 191/315

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