Answers

Subtract 20/10 from 15/30

1^st number: 15/30, 2^nd number: 2 0/10

15/30 - 20/10 is -3/2.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 30 and 10 is 30
   
   Next, find the equivalent fraction of both fractional numbers with denominator 30
2. For the 1st fraction, since 30 × 1 = 30,
   15/30 = 15 × 1/30 × 1 = 15/30
3. Likewise, for the 2nd fraction, since 10 × 3 = 30,
   20/10 = 20 × 3/10 × 3 = 60/30
4. Subtract the two like fractions:
   15/30 - 60/30 = 15 - 60/30 = -45/30
5. After reducing the fraction, the answer is -3/2

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