Answers

Subtract 81/28 from 84/18

1^st number: 4 12/18, 2^nd number: 2 25/28

84/18 - 81/28 is 149/84.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 18 and 28 is 252
   
   Next, find the equivalent fraction of both fractional numbers with denominator 252
2. For the 1st fraction, since 18 × 14 = 252,
   84/18 = 84 × 14/18 × 14 = 1176/252
3. Likewise, for the 2nd fraction, since 28 × 9 = 252,
   81/28 = 81 × 9/28 × 9 = 729/252
4. Subtract the two like fractions:
   1176/252 - 729/252 = 1176 - 729/252 = 447/252
5. After reducing the fraction, the answer is 149/84
6. In mixed form: 165/84

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