Answers

Subtract 81/28 from 84/54

1^st number: 1 30/54, 2^nd number: 2 25/28

84/54 - 81/28 is -337/252.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 54 and 28 is 756
   
   Next, find the equivalent fraction of both fractional numbers with denominator 756
2. For the 1st fraction, since 54 × 14 = 756,
   84/54 = 84 × 14/54 × 14 = 1176/756
3. Likewise, for the 2nd fraction, since 28 × 27 = 756,
   81/28 = 81 × 27/28 × 27 = 2187/756
4. Subtract the two like fractions:
   1176/756 - 2187/756 = 1176 - 2187/756 = -1011/756
5. After reducing the fraction, the answer is -337/252

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