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Add 8/21 and 45/49

8/21 + 45/49 is 191/147.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 21 and 49 is 147
  2. For the 1st fraction, since 21 × 7 = 147,
    8/21 = 8 × 7/21 × 7 = 56/147
  3. Likewise, for the 2nd fraction, since 49 × 3 = 147,
    45/49 = 45 × 3/49 × 3 = 135/147
  4. Add the two fractions:
    56/147 + 135/147 = 56 + 135/147 = 191/147
  5. In mixed form: 144/147

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