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Add 45/3 and 5/21

1st number: 15 0/3, 2nd number: 5/21

45/3 + 5/21 is 320/21.

Steps for adding fractions

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

    Next, find the equivalent fraction of both fractional numbers with denominator 21
  2. For the 1st fraction, since 3 × 7 = 21,
    45/3 = 45 × 7/3 × 7 = 315/21
  3. Likewise, for the 2nd fraction, since 21 × 1 = 21,
    5/21 = 5 × 1/21 × 1 = 5/21
  4. Add the two like fractions:
    315/21 + 5/21 = 315 + 5/21 = 320/21
  5. So, 45/3 + 5/21 = 320/21
    In mixed form: 155/21

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