Answers

Subtract 6/81 from 20/4

1^st number: 5 0/4, 2^nd number: 6/81

20/4 - 6/81 is 133/27.

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,
   20/4 = 20 × 81/4 × 81 = 1620/324
3. Likewise, for the 2nd fraction, since 81 × 4 = 324,
   6/81 = 6 × 4/81 × 4 = 24/324
4. Subtract the two like fractions:
   1620/324 - 24/324 = 1620 - 24/324 = 1596/324
5. After reducing the fraction, the answer is 133/27
6. In mixed form: 425/27

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