Answers

Subtract 18/40 from 45/54

45/54 - 18/40 is 23/60.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 54 and 40 is 1080
   
   Next, find the equivalent fraction of both fractional numbers with denominator 1080
2. For the 1st fraction, since 54 × 20 = 1080,
   45/54 = 45 × 20/54 × 20 = 900/1080
3. Likewise, for the 2nd fraction, since 40 × 27 = 1080,
   18/40 = 18 × 27/40 × 27 = 486/1080
4. Subtract the two like fractions:
   900/1080 - 486/1080 = 900 - 486/1080 = 414/1080
5. After reducing the fraction, the answer is 23/60

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