Answers

Subtract 40/12 from 15/54

1^st number: 15/54, 2^nd number: 3 4/12

15/54 - 40/12 is -55/18.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 54 and 12 is 108
   
   Next, find the equivalent fraction of both fractional numbers with denominator 108
2. For the 1st fraction, since 54 × 2 = 108,
   15/54 = 15 × 2/54 × 2 = 30/108
3. Likewise, for the 2nd fraction, since 12 × 9 = 108,
   40/12 = 40 × 9/12 × 9 = 360/108
4. Subtract the two like fractions:
   30/108 - 360/108 = 30 - 360/108 = -330/108
5. After reducing the fraction, the answer is -55/18

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