Answers

Subtract 70/54 from 30/84

1^st number: 30/84, 2^nd number: 1 16/54

30/84 - 70/54 is -355/378.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 84 and 54 is 756
   
   Next, find the equivalent fraction of both fractional numbers with denominator 756
2. For the 1st fraction, since 84 × 9 = 756,
   30/84 = 30 × 9/84 × 9 = 270/756
3. Likewise, for the 2nd fraction, since 54 × 14 = 756,
   70/54 = 70 × 14/54 × 14 = 980/756
4. Subtract the two like fractions:
   270/756 - 980/756 = 270 - 980/756 = -710/756
5. After reducing the fraction, the answer is -355/378

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