Answers

Add 15/98 and 54/84

15/98 + 54/84 is 39/49.

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,
   15/98 = 15 × 6/98 × 6 = 90/588
3. Likewise, for the 2nd fraction, since 84 × 7 = 588,
   54/84 = 54 × 7/84 × 7 = 378/588
4. Add the two like fractions:
   90/588 + 378/588 = 90 + 378/588 = 468/588
5. 468/588 simplified gives 39/49
6. So, 15/98 + 54/84 = 39/49

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