Answers

Subtract 25/4 from 28/10

1^st number: 2 8/10, 2^nd number: 6 1/4

28/10 - 25/4 is -69/20.

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,
   28/10 = 28 × 2/10 × 2 = 56/20
3. Likewise, for the 2nd fraction, since 4 × 5 = 20,
   25/4 = 25 × 5/4 × 5 = 125/20
4. Subtract the two like fractions:
   56/20 - 125/20 = 56 - 125/20 = -69/20

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