Answers

Subtract 27/80 from 20/75

20/75 - 27/80 is -17/240.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 75 and 80 is 1200
   
   Next, find the equivalent fraction of both fractional numbers with denominator 1200
2. For the 1st fraction, since 75 × 16 = 1200,
   20/75 = 20 × 16/75 × 16 = 320/1200
3. Likewise, for the 2nd fraction, since 80 × 15 = 1200,
   27/80 = 27 × 15/80 × 15 = 405/1200
4. Subtract the two like fractions:
   320/1200 - 405/1200 = 320 - 405/1200 = -85/1200
5. After reducing the fraction, the answer is -17/240

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