Answers

Subtract 20/54 from 4/20

4/20 - 20/54 is -23/135.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 20 and 54 is 540
   
   Next, find the equivalent fraction of both fractional numbers with denominator 540
2. For the 1st fraction, since 20 × 27 = 540,
   4/20 = 4 × 27/20 × 27 = 108/540
3. Likewise, for the 2nd fraction, since 54 × 10 = 540,
   20/54 = 20 × 10/54 × 10 = 200/540
4. Subtract the two like fractions:
   108/540 - 200/540 = 108 - 200/540 = -92/540
5. After reducing the fraction, the answer is -23/135

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