Answers

Subtract 63/98 from 9/80

9/80 - 63/98 is -297/560.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 80 and 98 is 3920
   
   Next, find the equivalent fraction of both fractional numbers with denominator 3920
2. For the 1st fraction, since 80 × 49 = 3920,
   9/80 = 9 × 49/80 × 49 = 441/3920
3. Likewise, for the 2nd fraction, since 98 × 40 = 3920,
   63/98 = 63 × 40/98 × 40 = 2520/3920
4. Subtract the two like fractions:
   441/3920 - 2520/3920 = 441 - 2520/3920 = -2079/3920
5. After reducing the fraction, the answer is -297/560

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