Answers

Subtract 42/54 from 20/18

1^st number: 1 2/18, 2^nd number: 42/54

20/18 - 42/54 is 1/3.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 18 and 54 is 54
   
   Next, find the equivalent fraction of both fractional numbers with denominator 54
2. For the 1st fraction, since 18 × 3 = 54,
   20/18 = 20 × 3/18 × 3 = 60/54
3. Likewise, for the 2nd fraction, since 54 × 1 = 54,
   42/54 = 42 × 1/54 × 1 = 42/54
4. Subtract the two like fractions:
   60/54 - 42/54 = 60 - 42/54 = 18/54
5. After reducing the fraction, the answer is 1/3

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