Answers

Subtract 70/81 from 84/4

1^st number: 21 0/4, 2^nd number: 70/81

84/4 - 70/81 is 1631/81.

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,
   84/4 = 84 × 81/4 × 81 = 6804/324
3. Likewise, for the 2nd fraction, since 81 × 4 = 324,
   70/81 = 70 × 4/81 × 4 = 280/324
4. Subtract the two like fractions:
   6804/324 - 280/324 = 6804 - 280/324 = 6524/324
5. After reducing the fraction, the answer is 1631/81
6. In mixed form: 2011/81

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