Answers

Subtract 81/18 from 6/4

1^st number: 1 2/4, 2^nd number: 4 9/18

6/4 - 81/18 is -3/1.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 4 and 18 is 36
   
   Next, find the equivalent fraction of both fractional numbers with denominator 36
2. For the 1st fraction, since 4 × 9 = 36,
   6/4 = 6 × 9/4 × 9 = 54/36
3. Likewise, for the 2nd fraction, since 18 × 2 = 36,
   81/18 = 81 × 2/18 × 2 = 162/36
4. Subtract the two like fractions:
   54/36 - 162/36 = 54 - 162/36 = -108/36
5. After reducing the fraction, the answer is -3/1

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