Answers

Subtract 9/18 from 7/54

7/54 - 9/18 is -10/27.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 54 and 18 is 54
   
   Next, find the equivalent fraction of both fractional numbers with denominator 54
2. For the 1st fraction, since 54 × 1 = 54,
   7/54 = 7 × 1/54 × 1 = 7/54
3. Likewise, for the 2nd fraction, since 18 × 3 = 54,
   9/18 = 9 × 3/18 × 3 = 27/54
4. Subtract the two like fractions:
   7/54 - 27/54 = 7 - 27/54 = -20/54
5. After reducing the fraction, the answer is -10/27

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