Answers

Add 21/98 and 50/72

21/98 + 50/72 is 229/252.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 98 and 72 is 3528
   
   Next, find the equivalent fraction of both fractional numbers with denominator 3528
2. For the 1st fraction, since 98 × 36 = 3528,
   21/98 = 21 × 36/98 × 36 = 756/3528
3. Likewise, for the 2nd fraction, since 72 × 49 = 3528,
   50/72 = 50 × 49/72 × 49 = 2450/3528
4. Add the two like fractions:
   756/3528 + 2450/3528 = 756 + 2450/3528 = 3206/3528
5. 3206/3528 simplified gives 229/252
6. So, 21/98 + 50/72 = 229/252

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