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Add 7/49 and 21/63

7/49 + 21/63 is 10/21.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 49 and 63 is 441

    Next, find the equivalent fraction of both fractional numbers with denominator 441
  2. For the 1st fraction, since 49 × 9 = 441,
    7/49 = 7 × 9/49 × 9 = 63/441
  3. Likewise, for the 2nd fraction, since 63 × 7 = 441,
    21/63 = 21 × 7/63 × 7 = 147/441
  4. Add the two like fractions:
    63/441 + 147/441 = 63 + 147/441 = 210/441
  5. 210/441 simplified gives 10/21
  6. So, 7/49 + 21/63 = 10/21

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