Answers

Subtract 50/9 from 81/90

1^st number: 81/90, 2^nd number: 5 5/9

81/90 - 50/9 is -419/90.

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,
   81/90 = 81 × 1/90 × 1 = 81/90
3. Likewise, for the 2nd fraction, since 9 × 10 = 90,
   50/9 = 50 × 10/9 × 10 = 500/90
4. Subtract the two like fractions:
   81/90 - 500/90 = 81 - 500/90 = -419/90

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