Answers

Subtract 20/56 from 5/54

5/54 - 20/56 is -50/189.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 54 and 56 is 1512
   
   Next, find the equivalent fraction of both fractional numbers with denominator 1512
2. For the 1st fraction, since 54 × 28 = 1512,
   5/54 = 5 × 28/54 × 28 = 140/1512
3. Likewise, for the 2nd fraction, since 56 × 27 = 1512,
   20/56 = 20 × 27/56 × 27 = 540/1512
4. Subtract the two like fractions:
   140/1512 - 540/1512 = 140 - 540/1512 = -400/1512
5. After reducing the fraction, the answer is -50/189

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