Answers

Subtract 8/54 from 7/42

7/42 - 8/54 is 1/54.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 42 and 54 is 378
   
   Next, find the equivalent fraction of both fractional numbers with denominator 378
2. For the 1st fraction, since 42 × 9 = 378,
   7/42 = 7 × 9/42 × 9 = 63/378
3. Likewise, for the 2nd fraction, since 54 × 7 = 378,
   8/54 = 8 × 7/54 × 7 = 56/378
4. Subtract the two like fractions:
   63/378 - 56/378 = 63 - 56/378 = 7/378
5. After reducing the fraction, the answer is 1/54

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