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Add 84/98 and 4/42

84/98 + 4/42 is 20/21.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 98 and 42 is 294

    Next, find the equivalent fraction of both fractional numbers with denominator 294
  2. For the 1st fraction, since 98 × 3 = 294,
    84/98 = 84 × 3/98 × 3 = 252/294
  3. Likewise, for the 2nd fraction, since 42 × 7 = 294,
    4/42 = 4 × 7/42 × 7 = 28/294
  4. Add the two like fractions:
    252/294 + 28/294 = 252 + 28/294 = 280/294
  5. 280/294 simplified gives 20/21
  6. So, 84/98 + 4/42 = 20/21

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