Answers

Subtract 25/81 from 70/4

1^st number: 17 2/4, 2^nd number: 25/81

70/4 - 25/81 is 2785/162.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 4 and 81 is 324
   
   Next, find the equivalent fraction of both fractional numbers with denominator 324
2. For the 1st fraction, since 4 × 81 = 324,
   70/4 = 70 × 81/4 × 81 = 5670/324
3. Likewise, for the 2nd fraction, since 81 × 4 = 324,
   25/81 = 25 × 4/81 × 4 = 100/324
4. Subtract the two like fractions:
   5670/324 - 100/324 = 5670 - 100/324 = 5570/324
5. After reducing the fraction, the answer is 2785/162
6. In mixed form: 1731/162

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