Answers

Add 30/98 and 45/80

30/98 + 45/80 is 681/784.

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,
   30/98 = 30 × 40/98 × 40 = 1200/3920
3. Likewise, for the 2nd fraction, since 80 × 49 = 3920,
   45/80 = 45 × 49/80 × 49 = 2205/3920
4. Add the two like fractions:
   1200/3920 + 2205/3920 = 1200 + 2205/3920 = 3405/3920
5. 3405/3920 simplified gives 681/784
6. So, 30/98 + 45/80 = 681/784

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