Answers

Subtract 70/42 from 8/54

1^st number: 8/54, 2^nd number: 1 28/42

8/54 - 70/42 is -41/27.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 54 and 42 is 378
   
   Next, find the equivalent fraction of both fractional numbers with denominator 378
2. For the 1st fraction, since 54 × 7 = 378,
   8/54 = 8 × 7/54 × 7 = 56/378
3. Likewise, for the 2nd fraction, since 42 × 9 = 378,
   70/42 = 70 × 9/42 × 9 = 630/378
4. Subtract the two like fractions:
   56/378 - 630/378 = 56 - 630/378 = -574/378
5. After reducing the fraction, the answer is -41/27

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