Answers

Subtract 81/40 from 5/63

1^st number: 5/63, 2^nd number: 2 1/40

5/63 - 81/40 is -4903/2520.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 63 and 40 is 2520
   
   Next, find the equivalent fraction of both fractional numbers with denominator 2520
2. For the 1st fraction, since 63 × 40 = 2520,
   5/63 = 5 × 40/63 × 40 = 200/2520
3. Likewise, for the 2nd fraction, since 40 × 63 = 2520,
   81/40 = 81 × 63/40 × 63 = 5103/2520
4. Subtract the two like fractions:
   200/2520 - 5103/2520 = 200 - 5103/2520 = -4903/2520

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