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Add 9/30 and 21/49

9/30 + 21/49 is 51/70.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 30 and 49 is 1470
  2. For the 1st fraction, since 30 × 49 = 1470,
    9/30 = 9 × 49/30 × 49 = 441/1470
  3. Likewise, for the 2nd fraction, since 49 × 30 = 1470,
    21/49 = 21 × 30/49 × 30 = 630/1470
  4. Add the two fractions:
    441/1470 + 630/1470 = 441 + 630/1470 = 1071/1470
  5. 1071/1470 simplified gives 51/70
  6. So, 9/30 + 21/49 = 51/70

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