Answers

Add 63/98 and 12/80

63/98 + 12/80 is 111/140.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 98 and 80 is 3920
   
   Next, find the equivalent fraction of both fractional numbers with denominator 3920
2. For the 1st fraction, since 98 × 40 = 3920,
   63/98 = 63 × 40/98 × 40 = 2520/3920
3. Likewise, for the 2nd fraction, since 80 × 49 = 3920,
   12/80 = 12 × 49/80 × 49 = 588/3920
4. Add the two like fractions:
   2520/3920 + 588/3920 = 2520 + 588/3920 = 3108/3920
5. 3108/3920 simplified gives 111/140
6. So, 63/98 + 12/80 = 111/140

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