Answers

Subtract 42/54 from 20/12

1^st number: 1 8/12, 2^nd number: 42/54

20/12 - 42/54 is 8/9.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 12 and 54 is 108
   
   Next, find the equivalent fraction of both fractional numbers with denominator 108
2. For the 1st fraction, since 12 × 9 = 108,
   20/12 = 20 × 9/12 × 9 = 180/108
3. Likewise, for the 2nd fraction, since 54 × 2 = 108,
   42/54 = 42 × 2/54 × 2 = 84/108
4. Subtract the two like fractions:
   180/108 - 84/108 = 180 - 84/108 = 96/108
5. After reducing the fraction, the answer is 8/9

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