Answers

Subtract 27/16 from 12/90

1^st number: 12/90, 2^nd number: 1 11/16

12/90 - 27/16 is -373/240.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 90 and 16 is 720
   
   Next, find the equivalent fraction of both fractional numbers with denominator 720
2. For the 1st fraction, since 90 × 8 = 720,
   12/90 = 12 × 8/90 × 8 = 96/720
3. Likewise, for the 2nd fraction, since 16 × 45 = 720,
   27/16 = 27 × 45/16 × 45 = 1215/720
4. Subtract the two like fractions:
   96/720 - 1215/720 = 96 - 1215/720 = -1119/720
5. After reducing the fraction, the answer is -373/240

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