Answers

Subtract 45/20 from 20/98

1^st number: 20/98, 2^nd number: 2 5/20

20/98 - 45/20 is -401/196.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 98 and 20 is 980
   
   Next, find the equivalent fraction of both fractional numbers with denominator 980
2. For the 1st fraction, since 98 × 10 = 980,
   20/98 = 20 × 10/98 × 10 = 200/980
3. Likewise, for the 2nd fraction, since 20 × 49 = 980,
   45/20 = 45 × 49/20 × 49 = 2205/980
4. Subtract the two like fractions:
   200/980 - 2205/980 = 200 - 2205/980 = -2005/980
5. After reducing the fraction, the answer is -401/196

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