Answers

Subtract 28/10 from 75/90

1^st number: 75/90, 2^nd number: 2 8/10

75/90 - 28/10 is -59/30.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 90 and 10 is 90
   
   Next, find the equivalent fraction of both fractional numbers with denominator 90
2. For the 1st fraction, since 90 × 1 = 90,
   75/90 = 75 × 1/90 × 1 = 75/90
3. Likewise, for the 2nd fraction, since 10 × 9 = 90,
   28/10 = 28 × 9/10 × 9 = 252/90
4. Subtract the two like fractions:
   75/90 - 252/90 = 75 - 252/90 = -177/90
5. After reducing the fraction, the answer is -59/30

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