Answers

Subtract 8/7 from 10/81

1^st number: 10/81, 2^nd number: 1 1/7

10/81 - 8/7 is -578/567.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 81 and 7 is 567
   
   Next, find the equivalent fraction of both fractional numbers with denominator 567
2. For the 1st fraction, since 81 × 7 = 567,
   10/81 = 10 × 7/81 × 7 = 70/567
3. Likewise, for the 2nd fraction, since 7 × 81 = 567,
   8/7 = 8 × 81/7 × 81 = 648/567
4. Subtract the two like fractions:
   70/567 - 648/567 = 70 - 648/567 = -578/567

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