Answers

Subtract 20/63 from 63/2

1^st number: 31 1/2, 2^nd number: 20/63

63/2 - 20/63 is 3929/126.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 2 and 63 is 126
   
   Next, find the equivalent fraction of both fractional numbers with denominator 126
2. For the 1st fraction, since 2 × 63 = 126,
   63/2 = 63 × 63/2 × 63 = 3969/126
3. Likewise, for the 2nd fraction, since 63 × 2 = 126,
   20/63 = 20 × 2/63 × 2 = 40/126
4. Subtract the two like fractions:
   3969/126 - 40/126 = 3969 - 40/126 = 3929/126
5. In mixed form: 3123/126

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