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Add 15/42 and 4/16

15/42 + 4/16 is 17/28.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 42 and 16 is 336

    Next, find the equivalent fraction of both fractional numbers with denominator 336
  2. For the 1st fraction, since 42 × 8 = 336,
    15/42 = 15 × 8/42 × 8 = 120/336
  3. Likewise, for the 2nd fraction, since 16 × 21 = 336,
    4/16 = 4 × 21/16 × 21 = 84/336
  4. Add the two like fractions:
    120/336 + 84/336 = 120 + 84/336 = 204/336
  5. 204/336 simplified gives 17/28
  6. So, 15/42 + 4/16 = 17/28

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