Answers

Subtract 90/84 from 2/54

1^st number: 2/54, 2^nd number: 1 6/84

2/54 - 90/84 is -391/378.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 54 and 84 is 756
   
   Next, find the equivalent fraction of both fractional numbers with denominator 756
2. For the 1st fraction, since 54 × 14 = 756,
   2/54 = 2 × 14/54 × 14 = 28/756
3. Likewise, for the 2nd fraction, since 84 × 9 = 756,
   90/84 = 90 × 9/84 × 9 = 810/756
4. Subtract the two like fractions:
   28/756 - 810/756 = 28 - 810/756 = -782/756
5. After reducing the fraction, the answer is -391/378

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