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Add 9/20 and 4/49

9/20 + 4/49 is 521/980.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 20 and 49 is 980
  2. For the 1st fraction, since 20 × 49 = 980,
    9/20 = 9 × 49/20 × 49 = 441/980
  3. Likewise, for the 2nd fraction, since 49 × 20 = 980,
    4/49 = 4 × 20/49 × 20 = 80/980
  4. Add the two fractions:
    441/980 + 80/980 = 441 + 80/980 = 521/980

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