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Add 72/15 and 16/42

1st number: 4 12/15, 2nd number: 16/42

72/15 + 16/42 is 544/105.

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,
    72/15 = 72 × 14/15 × 14 = 1008/210
  3. Likewise, for the 2nd fraction, since 42 × 5 = 210,
    16/42 = 16 × 5/42 × 5 = 80/210
  4. Add the two like fractions:
    1008/210 + 80/210 = 1008 + 80/210 = 1088/210
  5. 1088/210 simplified gives 544/105
  6. So, 72/15 + 16/42 = 544/105
    In mixed form: 519/105

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