Answers

Subtract 7/27 from 9/90

9/90 - 7/27 is -43/270.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 90 and 27 is 270
   
   Next, find the equivalent fraction of both fractional numbers with denominator 270
2. For the 1st fraction, since 90 × 3 = 270,
   9/90 = 9 × 3/90 × 3 = 27/270
3. Likewise, for the 2nd fraction, since 27 × 10 = 270,
   7/27 = 7 × 10/27 × 10 = 70/270
4. Subtract the two like fractions:
   27/270 - 70/270 = 27 - 70/270 = -43/270

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