Answers

Subtract 20/9 from 8/90

1^st number: 8/90, 2^nd number: 2 2/9

8/90 - 20/9 is -32/15.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 90 and 9 is 90
   
   Next, find the equivalent fraction of both fractional numbers with denominator 90
2. For the 1st fraction, since 90 × 1 = 90,
   8/90 = 8 × 1/90 × 1 = 8/90
3. Likewise, for the 2nd fraction, since 9 × 10 = 90,
   20/9 = 20 × 10/9 × 10 = 200/90
4. Subtract the two like fractions:
   8/90 - 200/90 = 8 - 200/90 = -192/90
5. After reducing the fraction, the answer is -32/15

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