Answers

Subtract 20/27 from 10/20

10/20 - 20/27 is -13/54.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 20 and 27 is 540
   
   Next, find the equivalent fraction of both fractional numbers with denominator 540
2. For the 1st fraction, since 20 × 27 = 540,
   10/20 = 10 × 27/20 × 27 = 270/540
3. Likewise, for the 2nd fraction, since 27 × 20 = 540,
   20/27 = 20 × 20/27 × 20 = 400/540
4. Subtract the two like fractions:
   270/540 - 400/540 = 270 - 400/540 = -130/540
5. After reducing the fraction, the answer is -13/54

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