Answers

Subtract 80/7 from 10/81

1^st number: 10/81, 2^nd number: 11 3/7

10/81 - 80/7 is -6410/567.

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,
   80/7 = 80 × 81/7 × 81 = 6480/567
4. Subtract the two like fractions:
   70/567 - 6480/567 = 70 - 6480/567 = -6410/567

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