Answers

Subtract 15/12 from 6/20

1^st number: 6/20, 2^nd number: 1 3/12

6/20 - 15/12 is -19/20.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 20 and 12 is 60
   
   Next, find the equivalent fraction of both fractional numbers with denominator 60
2. For the 1st fraction, since 20 × 3 = 60,
   6/20 = 6 × 3/20 × 3 = 18/60
3. Likewise, for the 2nd fraction, since 12 × 5 = 60,
   15/12 = 15 × 5/12 × 5 = 75/60
4. Subtract the two like fractions:
   18/60 - 75/60 = 18 - 75/60 = -57/60
5. After reducing the fraction, the answer is -19/20

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