Answers

Subtract 81/16 from 16/7

1^st number: 2 2/7, 2^nd number: 5 1/16

16/7 - 81/16 is -311/112.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 7 and 16 is 112
   
   Next, find the equivalent fraction of both fractional numbers with denominator 112
2. For the 1st fraction, since 7 × 16 = 112,
   16/7 = 16 × 16/7 × 16 = 256/112
3. Likewise, for the 2nd fraction, since 16 × 7 = 112,
   81/16 = 81 × 7/16 × 7 = 567/112
4. Subtract the two like fractions:
   256/112 - 567/112 = 256 - 567/112 = -311/112

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