Answers

Subtract 5/54 from 5/21

5/21 - 5/54 is 55/378.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 21 and 54 is 378
   
   Next, find the equivalent fraction of both fractional numbers with denominator 378
2. For the 1st fraction, since 21 × 18 = 378,
   5/21 = 5 × 18/21 × 18 = 90/378
3. Likewise, for the 2nd fraction, since 54 × 7 = 378,
   5/54 = 5 × 7/54 × 7 = 35/378
4. Subtract the two like fractions:
   90/378 - 35/378 = 90 - 35/378 = 55/378

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