Answers

Subtract 72/28 from 81/16

1^st number: 5 1/16, 2^nd number: 2 16/28

81/16 - 72/28 is 279/112.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 16 and 28 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 28 × 4 = 112,
   72/28 = 72 × 4/28 × 4 = 288/112
4. Subtract the two like fractions:
   567/112 - 288/112 = 567 - 288/112 = 279/112
5. In mixed form: 255/112

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