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Add 84/4 and 42/16

1st number: 21 0/4, 2nd number: 2 10/16

84/4 + 42/16 is 189/8.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 4 and 16 is 16

    Next, find the equivalent fraction of both fractional numbers with denominator 16
  2. For the 1st fraction, since 4 × 4 = 16,
    84/4 = 84 × 4/4 × 4 = 336/16
  3. Likewise, for the 2nd fraction, since 16 × 1 = 16,
    42/16 = 42 × 1/16 × 1 = 42/16
  4. Add the two like fractions:
    336/16 + 42/16 = 336 + 42/16 = 378/16
  5. 378/16 simplified gives 189/8
  6. So, 84/4 + 42/16 = 189/8
    In mixed form: 235/8

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