Answers

Subtract 27/50 from 12/90

12/90 - 27/50 is -61/150.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 90 and 50 is 450
   
   Next, find the equivalent fraction of both fractional numbers with denominator 450
2. For the 1st fraction, since 90 × 5 = 450,
   12/90 = 12 × 5/90 × 5 = 60/450
3. Likewise, for the 2nd fraction, since 50 × 9 = 450,
   27/50 = 27 × 9/50 × 9 = 243/450
4. Subtract the two like fractions:
   60/450 - 243/450 = 60 - 243/450 = -183/450
5. After reducing the fraction, the answer is -61/150

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