Answers

Add 21/98 and 6/84

21/98 + 6/84 is 2/7.

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,
   21/98 = 21 × 6/98 × 6 = 126/588
3. Likewise, for the 2nd fraction, since 84 × 7 = 588,
   6/84 = 6 × 7/84 × 7 = 42/588
4. Add the two like fractions:
   126/588 + 42/588 = 126 + 42/588 = 168/588
5. 168/588 simplified gives 2/7
6. So, 21/98 + 6/84 = 2/7

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