Answers

Add 21/54 and 54/98

21/54 + 54/98 is 829/882.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 54 and 98 is 2646
   
   Next, find the equivalent fraction of both fractional numbers with denominator 2646
2. For the 1st fraction, since 54 × 49 = 2646,
   21/54 = 21 × 49/54 × 49 = 1029/2646
3. Likewise, for the 2nd fraction, since 98 × 27 = 2646,
   54/98 = 54 × 27/98 × 27 = 1458/2646
4. Add the two like fractions:
   1029/2646 + 1458/2646 = 1029 + 1458/2646 = 2487/2646
5. 2487/2646 simplified gives 829/882
6. So, 21/54 + 54/98 = 829/882

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