Answers

Subtract 21/25 from 7/54

7/54 - 21/25 is -959/1350.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 54 and 25 is 1350
   
   Next, find the equivalent fraction of both fractional numbers with denominator 1350
2. For the 1st fraction, since 54 × 25 = 1350,
   7/54 = 7 × 25/54 × 25 = 175/1350
3. Likewise, for the 2nd fraction, since 25 × 54 = 1350,
   21/25 = 21 × 54/25 × 54 = 1134/1350
4. Subtract the two like fractions:
   175/1350 - 1134/1350 = 175 - 1134/1350 = -959/1350

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