Answers

Subtract 42/27 from 12/18

1^st number: 12/18, 2^nd number: 1 15/27

12/18 - 42/27 is -8/9.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 18 and 27 is 54
   
   Next, find the equivalent fraction of both fractional numbers with denominator 54
2. For the 1st fraction, since 18 × 3 = 54,
   12/18 = 12 × 3/18 × 3 = 36/54
3. Likewise, for the 2nd fraction, since 27 × 2 = 54,
   42/27 = 42 × 2/27 × 2 = 84/54
4. Subtract the two like fractions:
   36/54 - 84/54 = 36 - 84/54 = -48/54
5. After reducing the fraction, the answer is -8/9

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