Answers

Subtract 27/15 from 15/20

1^st number: 15/20, 2^nd number: 1 12/15

15/20 - 27/15 is -21/20.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 20 and 15 is 60
   
   Next, find the equivalent fraction of both fractional numbers with denominator 60
2. For the 1st fraction, since 20 × 3 = 60,
   15/20 = 15 × 3/20 × 3 = 45/60
3. Likewise, for the 2nd fraction, since 15 × 4 = 60,
   27/15 = 27 × 4/15 × 4 = 108/60
4. Subtract the two like fractions:
   45/60 - 108/60 = 45 - 108/60 = -63/60
5. After reducing the fraction, the answer is -21/20

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