Answers

Subtract 50/7 from 18/54

1^st number: 18/54, 2^nd number: 7 1/7

18/54 - 50/7 is -143/21.

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,
   18/54 = 18 × 7/54 × 7 = 126/378
3. Likewise, for the 2nd fraction, since 7 × 54 = 378,
   50/7 = 50 × 54/7 × 54 = 2700/378
4. Subtract the two like fractions:
   126/378 - 2700/378 = 126 - 2700/378 = -2574/378
5. After reducing the fraction, the answer is -143/21

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