Answers

Subtract 25/10 from 18/20

1^st number: 18/20, 2^nd number: 2 5/10

18/20 - 25/10 is -8/5.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 20 and 10 is 20
   
   Next, find the equivalent fraction of both fractional numbers with denominator 20
2. For the 1st fraction, since 20 × 1 = 20,
   18/20 = 18 × 1/20 × 1 = 18/20
3. Likewise, for the 2nd fraction, since 10 × 2 = 20,
   25/10 = 25 × 2/10 × 2 = 50/20
4. Subtract the two like fractions:
   18/20 - 50/20 = 18 - 50/20 = -32/20
5. After reducing the fraction, the answer is -8/5

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