Answers

Subtract 20/4 from 27/10

1^st number: 2 7/10, 2^nd number: 5 0/4

27/10 - 20/4 is -23/10.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 10 and 4 is 20
   
   Next, find the equivalent fraction of both fractional numbers with denominator 20
2. For the 1st fraction, since 10 × 2 = 20,
   27/10 = 27 × 2/10 × 2 = 54/20
3. Likewise, for the 2nd fraction, since 4 × 5 = 20,
   20/4 = 20 × 5/4 × 5 = 100/20
4. Subtract the two like fractions:
   54/20 - 100/20 = 54 - 100/20 = -46/20
5. After reducing the fraction, the answer is -23/10

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