Answers

Subtract 40/7 from 40/54

1^st number: 40/54, 2^nd number: 5 5/7

40/54 - 40/7 is -940/189.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 54 and 7 is 378
   
   Next, find the equivalent fraction of both fractional numbers with denominator 378
2. For the 1st fraction, since 54 × 7 = 378,
   40/54 = 40 × 7/54 × 7 = 280/378
3. Likewise, for the 2nd fraction, since 7 × 54 = 378,
   40/7 = 40 × 54/7 × 54 = 2160/378
4. Subtract the two like fractions:
   280/378 - 2160/378 = 280 - 2160/378 = -1880/378
5. After reducing the fraction, the answer is -940/189

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