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Add 42/98 and 21/84

42/98 + 21/84 is 19/28.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 98 and 84 is 588

    Next, find the equivalent fraction of both fractional numbers with denominator 588
  2. For the 1st fraction, since 98 × 6 = 588,
    42/98 = 42 × 6/98 × 6 = 252/588
  3. Likewise, for the 2nd fraction, since 84 × 7 = 588,
    21/84 = 21 × 7/84 × 7 = 147/588
  4. Add the two like fractions:
    252/588 + 147/588 = 252 + 147/588 = 399/588
  5. 399/588 simplified gives 19/28
  6. So, 42/98 + 21/84 = 19/28

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