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Add 12/15 and 16/42

12/15 + 16/42 is 124/105.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 15 and 42 is 210

    Next, find the equivalent fraction of both fractional numbers with denominator 210
  2. For the 1st fraction, since 15 × 14 = 210,
    12/15 = 12 × 14/15 × 14 = 168/210
  3. Likewise, for the 2nd fraction, since 42 × 5 = 210,
    16/42 = 16 × 5/42 × 5 = 80/210
  4. Add the two like fractions:
    168/210 + 80/210 = 168 + 80/210 = 248/210
  5. 248/210 simplified gives 124/105
  6. So, 12/15 + 16/42 = 124/105
    In mixed form: 119/105

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