Answers

Subtract 20/6 from 15/54

1^st number: 15/54, 2^nd number: 3 2/6

15/54 - 20/6 is -55/18.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 54 and 6 is 54
   
   Next, find the equivalent fraction of both fractional numbers with denominator 54
2. For the 1st fraction, since 54 × 1 = 54,
   15/54 = 15 × 1/54 × 1 = 15/54
3. Likewise, for the 2nd fraction, since 6 × 9 = 54,
   20/6 = 20 × 9/6 × 9 = 180/54
4. Subtract the two like fractions:
   15/54 - 180/54 = 15 - 180/54 = -165/54
5. After reducing the fraction, the answer is -55/18

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