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Add 3/21 and 3/8

3/21 + 3/8 is 29/56.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 21 and 8 is 168
  2. For the 1st fraction, since 21 × 8 = 168,
    3/21 = 3 × 8/21 × 8 = 24/168
  3. Likewise, for the 2nd fraction, since 8 × 21 = 168,
    3/8 = 3 × 21/8 × 21 = 63/168
  4. Add the two fractions:
    24/168 + 63/168 = 24 + 63/168 = 87/168
  5. After reducing the fraction, the answer is 29/56

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