Answers

Subtract 90/18 from 7/54

1^st number: 7/54, 2^nd number: 5 0/18

7/54 - 90/18 is -263/54.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 54 and 18 is 54
   
   Next, find the equivalent fraction of both fractional numbers with denominator 54
2. For the 1st fraction, since 54 × 1 = 54,
   7/54 = 7 × 1/54 × 1 = 7/54
3. Likewise, for the 2nd fraction, since 18 × 3 = 54,
   90/18 = 90 × 3/18 × 3 = 270/54
4. Subtract the two like fractions:
   7/54 - 270/54 = 7 - 270/54 = -263/54

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