Answers

Subtract 48/81 from 21/4

1^st number: 5 1/4, 2^nd number: 48/81

21/4 - 48/81 is 503/108.

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,
   21/4 = 21 × 81/4 × 81 = 1701/324
3. Likewise, for the 2nd fraction, since 81 × 4 = 324,
   48/81 = 48 × 4/81 × 4 = 192/324
4. Subtract the two like fractions:
   1701/324 - 192/324 = 1701 - 192/324 = 1509/324
5. After reducing the fraction, the answer is 503/108
6. In mixed form: 471/108

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