Answers

Subtract 84/81 from 5/70

1^st number: 5/70, 2^nd number: 1 3/81

5/70 - 84/81 is -365/378.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 70 and 81 is 5670
   
   Next, find the equivalent fraction of both fractional numbers with denominator 5670
2. For the 1st fraction, since 70 × 81 = 5670,
   5/70 = 5 × 81/70 × 81 = 405/5670
3. Likewise, for the 2nd fraction, since 81 × 70 = 5670,
   84/81 = 84 × 70/81 × 70 = 5880/5670
4. Subtract the two like fractions:
   405/5670 - 5880/5670 = 405 - 5880/5670 = -5475/5670
5. After reducing the fraction, the answer is -365/378

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