Answers

Subtract 40/54 from 18/25

18/25 - 40/54 is -14/675.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 25 and 54 is 1350
   
   Next, find the equivalent fraction of both fractional numbers with denominator 1350
2. For the 1st fraction, since 25 × 54 = 1350,
   18/25 = 18 × 54/25 × 54 = 972/1350
3. Likewise, for the 2nd fraction, since 54 × 25 = 1350,
   40/54 = 40 × 25/54 × 25 = 1000/1350
4. Subtract the two like fractions:
   972/1350 - 1000/1350 = 972 - 1000/1350 = -28/1350
5. After reducing the fraction, the answer is -14/675

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