Answers

Subtract 9/10 from 10/98

10/98 - 9/10 is -391/490.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 98 and 10 is 490
   
   Next, find the equivalent fraction of both fractional numbers with denominator 490
2. For the 1st fraction, since 98 × 5 = 490,
   10/98 = 10 × 5/98 × 5 = 50/490
3. Likewise, for the 2nd fraction, since 10 × 49 = 490,
   9/10 = 9 × 49/10 × 49 = 441/490
4. Subtract the two like fractions:
   50/490 - 441/490 = 50 - 441/490 = -391/490

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