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Add 15/3 and 5/7

1st number: 5 0/3, 2nd number: 5/7

15/3 + 5/7 is 40/7.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 3 and 7 is 21

    Next, find the equivalent fraction of both fractional numbers with denominator 21
  2. For the 1st fraction, since 3 × 7 = 21,
    15/3 = 15 × 7/3 × 7 = 105/21
  3. Likewise, for the 2nd fraction, since 7 × 3 = 21,
    5/7 = 5 × 3/7 × 3 = 15/21
  4. Add the two like fractions:
    105/21 + 15/21 = 105 + 15/21 = 120/21
  5. 120/21 simplified gives 40/7
  6. So, 15/3 + 5/7 = 40/7
    In mixed form: 55/7

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