Answers

Subtract 27/98 from 4/90

4/90 - 27/98 is -1019/4410.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 90 and 98 is 4410
   
   Next, find the equivalent fraction of both fractional numbers with denominator 4410
2. For the 1st fraction, since 90 × 49 = 4410,
   4/90 = 4 × 49/90 × 49 = 196/4410
3. Likewise, for the 2nd fraction, since 98 × 45 = 4410,
   27/98 = 27 × 45/98 × 45 = 1215/4410
4. Subtract the two like fractions:
   196/4410 - 1215/4410 = 196 - 1215/4410 = -1019/4410

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