Answers

Subtract 21/81 from 84/4

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

84/4 - 21/81 is 560/27.

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,
   21/81 = 21 × 4/81 × 4 = 84/324
4. Subtract the two like fractions:
   6804/324 - 84/324 = 6804 - 84/324 = 6720/324
5. After reducing the fraction, the answer is 560/27
6. In mixed form: 2020/27

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