Answers

Subtract 49/54 from 15/90

15/90 - 49/54 is -20/27.

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,
   15/90 = 15 × 3/90 × 3 = 45/270
3. Likewise, for the 2nd fraction, since 54 × 5 = 270,
   49/54 = 49 × 5/54 × 5 = 245/270
4. Subtract the two like fractions:
   45/270 - 245/270 = 45 - 245/270 = -200/270
5. After reducing the fraction, the answer is -20/27

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