Answers

Subtract 15/90 from 20/98

20/98 - 15/90 is 11/294.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 98 and 90 is 4410
   
   Next, find the equivalent fraction of both fractional numbers with denominator 4410
2. For the 1st fraction, since 98 × 45 = 4410,
   20/98 = 20 × 45/98 × 45 = 900/4410
3. Likewise, for the 2nd fraction, since 90 × 49 = 4410,
   15/90 = 15 × 49/90 × 49 = 735/4410
4. Subtract the two like fractions:
   900/4410 - 735/4410 = 900 - 735/4410 = 165/4410
5. After reducing the fraction, the answer is 11/294

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