Answers

Subtract 70/54 from 15/84

1^st number: 15/84, 2^nd number: 1 16/54

15/84 - 70/54 is -845/756.

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,
   15/84 = 15 × 9/84 × 9 = 135/756
3. Likewise, for the 2nd fraction, since 54 × 14 = 756,
   70/54 = 70 × 14/54 × 14 = 980/756
4. Subtract the two like fractions:
   135/756 - 980/756 = 135 - 980/756 = -845/756

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