Answers

Subtract 18/6 from 90/84

1^st number: 1 6/84, 2^nd number: 3 0/6

90/84 - 18/6 is -27/14.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 84 and 6 is 84
   
   Next, find the equivalent fraction of both fractional numbers with denominator 84
2. For the 1st fraction, since 84 × 1 = 84,
   90/84 = 90 × 1/84 × 1 = 90/84
3. Likewise, for the 2nd fraction, since 6 × 14 = 84,
   18/6 = 18 × 14/6 × 14 = 252/84
4. Subtract the two like fractions:
   90/84 - 252/84 = 90 - 252/84 = -162/84
5. After reducing the fraction, the answer is -27/14

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