Answers

Subtract 98/8 from 63/20

1^st number: 3 3/20, 2^nd number: 12 2/8

63/20 - 98/8 is -91/10.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 20 and 8 is 40
   
   Next, find the equivalent fraction of both fractional numbers with denominator 40
2. For the 1st fraction, since 20 × 2 = 40,
   63/20 = 63 × 2/20 × 2 = 126/40
3. Likewise, for the 2nd fraction, since 8 × 5 = 40,
   98/8 = 98 × 5/8 × 5 = 490/40
4. Subtract the two like fractions:
   126/40 - 490/40 = 126 - 490/40 = -364/40
5. After reducing the fraction, the answer is -91/10

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