Answers

Subtract 48/54 from 15/40

15/40 - 48/54 is -37/72.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 40 and 54 is 1080
   
   Next, find the equivalent fraction of both fractional numbers with denominator 1080
2. For the 1st fraction, since 40 × 27 = 1080,
   15/40 = 15 × 27/40 × 27 = 405/1080
3. Likewise, for the 2nd fraction, since 54 × 20 = 1080,
   48/54 = 48 × 20/54 × 20 = 960/1080
4. Subtract the two like fractions:
   405/1080 - 960/1080 = 405 - 960/1080 = -555/1080
5. After reducing the fraction, the answer is -37/72

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