Answers

Subtract 63/98 from 27/20

1^st number: 1 7/20, 2^nd number: 63/98

27/20 - 63/98 is 99/140.

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,
   27/20 = 27 × 49/20 × 49 = 1323/980
3. Likewise, for the 2nd fraction, since 98 × 10 = 980,
   63/98 = 63 × 10/98 × 10 = 630/980
4. Subtract the two like fractions:
   1323/980 - 630/980 = 1323 - 630/980 = 693/980
5. After reducing the fraction, the answer is 99/140

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