Answers

Subtract 4/98 from 81/20

1^st number: 4 1/20, 2^nd number: 4/98

81/20 - 4/98 is 3929/980.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 20 and 98 is 980
   
   Next, find the equivalent fraction of both fractional numbers with denominator 980
2. For the 1st fraction, since 20 × 49 = 980,
   81/20 = 81 × 49/20 × 49 = 3969/980
3. Likewise, for the 2nd fraction, since 98 × 10 = 980,
   4/98 = 4 × 10/98 × 10 = 40/980
4. Subtract the two like fractions:
   3969/980 - 40/980 = 3969 - 40/980 = 3929/980
5. In mixed form: 49/980

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