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Add 5/3 and 15/7

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

5/3 + 15/7 is 80/21.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 3 and 7 is 21
  2. For the 1st fraction, since 3 × 7 = 21,
    5/3 = 5 × 7/3 × 7 = 35/21
  3. Likewise, for the 2nd fraction, since 7 × 3 = 21,
    15/7 = 15 × 3/7 × 3 = 45/21
  4. Add the two fractions:
    35/21 + 45/21 = 35 + 45/21 = 80/21
  5. In mixed form: 317/21

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