Answers

Subtract 18/14 from 15/42

1^st number: 15/42, 2^nd number: 1 4/14

15/42 - 18/14 is -13/14.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 42 and 14 is 42
   
   Next, find the equivalent fraction of both fractional numbers with denominator 42
2. For the 1st fraction, since 42 × 1 = 42,
   15/42 = 15 × 1/42 × 1 = 15/42
3. Likewise, for the 2nd fraction, since 14 × 3 = 42,
   18/14 = 18 × 3/14 × 3 = 54/42
4. Subtract the two like fractions:
   15/42 - 54/42 = 15 - 54/42 = -39/42
5. After reducing the fraction, the answer is -13/14

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