Answers

Subtract 90/14 from 54/12

1^st number: 4 6/12, 2^nd number: 6 6/14

54/12 - 90/14 is -27/14.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 12 and 14 is 84
   
   Next, find the equivalent fraction of both fractional numbers with denominator 84
2. For the 1st fraction, since 12 × 7 = 84,
   54/12 = 54 × 7/12 × 7 = 378/84
3. Likewise, for the 2nd fraction, since 14 × 6 = 84,
   90/14 = 90 × 6/14 × 6 = 540/84
4. Subtract the two like fractions:
   378/84 - 540/84 = 378 - 540/84 = -162/84
5. After reducing the fraction, the answer is -27/14

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