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Add 40/3 and 45/7

1st number: 13 1/3, 2nd number: 6 3/7

40/3 + 45/7 is 415/21.

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,
    40/3 = 40 × 7/3 × 7 = 280/21
  3. Likewise, for the 2nd fraction, since 7 × 3 = 21,
    45/7 = 45 × 3/7 × 3 = 135/21
  4. Add the two fractions:
    280/21 + 135/21 = 280 + 135/21 = 415/21
  5. So, 40/3 + 45/7 = 415/21
    In mixed form: 1916/21

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