Answers

Subtract 27/60 from 7/20

7/20 - 27/60 is -1/10.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 20 and 60 is 60
   
   Next, find the equivalent fraction of both fractional numbers with denominator 60
2. For the 1st fraction, since 20 × 3 = 60,
   7/20 = 7 × 3/20 × 3 = 21/60
3. Likewise, for the 2nd fraction, since 60 × 1 = 60,
   27/60 = 27 × 1/60 × 1 = 27/60
4. Subtract the two like fractions:
   21/60 - 27/60 = 21 - 27/60 = -6/60
5. After reducing the fraction, the answer is -1/10

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