Answers

Subtract 40/7 from 21/98

1^st number: 21/98, 2^nd number: 5 5/7

21/98 - 40/7 is -11/2.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 98 and 7 is 98
   
   Next, find the equivalent fraction of both fractional numbers with denominator 98
2. For the 1st fraction, since 98 × 1 = 98,
   21/98 = 21 × 1/98 × 1 = 21/98
3. Likewise, for the 2nd fraction, since 7 × 14 = 98,
   40/7 = 40 × 14/7 × 14 = 560/98
4. Subtract the two like fractions:
   21/98 - 560/98 = 21 - 560/98 = -539/98
5. After reducing the fraction, the answer is -11/2

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