Answers

Subtract 18/54 from 27/90

27/90 - 18/54 is -1/30.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 90 and 54 is 270
   
   Next, find the equivalent fraction of both fractional numbers with denominator 270
2. For the 1st fraction, since 90 × 3 = 270,
   27/90 = 27 × 3/90 × 3 = 81/270
3. Likewise, for the 2nd fraction, since 54 × 5 = 270,
   18/54 = 18 × 5/54 × 5 = 90/270
4. Subtract the two like fractions:
   81/270 - 90/270 = 81 - 90/270 = -9/270
5. After reducing the fraction, the answer is -1/30

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