Answers

Subtract 20/27 from 28/54

28/54 - 20/27 is -2/9.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 54 and 27 is 54
   
   Next, find the equivalent fraction of both fractional numbers with denominator 54
2. For the 1st fraction, since 54 × 1 = 54,
   28/54 = 28 × 1/54 × 1 = 28/54
3. Likewise, for the 2nd fraction, since 27 × 2 = 54,
   20/27 = 20 × 2/27 × 2 = 40/54
4. Subtract the two like fractions:
   28/54 - 40/54 = 28 - 40/54 = -12/54
5. After reducing the fraction, the answer is -2/9

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