Answers

Subtract 28/7 from 1/63

1^st number: 1/63, 2^nd number: 4 0/7

1/63 - 28/7 is -251/63.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 63 and 7 is 63
   
   Next, find the equivalent fraction of both fractional numbers with denominator 63
2. For the 1st fraction, since 63 × 1 = 63,
   1/63 = 1 × 1/63 × 1 = 1/63
3. Likewise, for the 2nd fraction, since 7 × 9 = 63,
   28/7 = 28 × 9/7 × 9 = 252/63
4. Subtract the two like fractions:
   1/63 - 252/63 = 1 - 252/63 = -251/63

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