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Add 21/7 and 3/8

1st number: 3 0/7, 2nd number: 3/8

21/7 + 3/8 is 27/8.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 7 and 8 is 56
  2. For the 1st fraction, since 7 × 8 = 56,
    21/7 = 21 × 8/7 × 8 = 168/56
  3. Likewise, for the 2nd fraction, since 8 × 7 = 56,
    3/8 = 3 × 7/8 × 7 = 21/56
  4. Add the two fractions:
    168/56 + 21/56 = 168 + 21/56 = 189/56
  5. After reducing the fraction, the answer is 27/8
  6. In mixed form: 33/8

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