Answers

Subtract 54/7 from 81/16

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

81/16 - 54/7 is -297/112.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 16 and 7 is 112
   
   Next, find the equivalent fraction of both fractional numbers with denominator 112
2. For the 1st fraction, since 16 × 7 = 112,
   81/16 = 81 × 7/16 × 7 = 567/112
3. Likewise, for the 2nd fraction, since 7 × 16 = 112,
   54/7 = 54 × 16/7 × 16 = 864/112
4. Subtract the two like fractions:
   567/112 - 864/112 = 567 - 864/112 = -297/112

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