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Add 1/21 and 4/16

1/21 + 4/16 is 25/84.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 21 and 16 is 336

    Next, find the equivalent fraction of both fractional numbers with denominator 336
  2. For the 1st fraction, since 21 × 16 = 336,
    1/21 = 1 × 16/21 × 16 = 16/336
  3. Likewise, for the 2nd fraction, since 16 × 21 = 336,
    4/16 = 4 × 21/16 × 21 = 84/336
  4. Add the two like fractions:
    16/336 + 84/336 = 16 + 84/336 = 100/336
  5. 100/336 simplified gives 25/84
  6. So, 1/21 + 4/16 = 25/84

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