Answers

Subtract 27/84 from 7/54

7/54 - 27/84 is -145/756.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 54 and 84 is 756
   
   Next, find the equivalent fraction of both fractional numbers with denominator 756
2. For the 1st fraction, since 54 × 14 = 756,
   7/54 = 7 × 14/54 × 14 = 98/756
3. Likewise, for the 2nd fraction, since 84 × 9 = 756,
   27/84 = 27 × 9/84 × 9 = 243/756
4. Subtract the two like fractions:
   98/756 - 243/756 = 98 - 243/756 = -145/756

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