Answers

Subtract 48/81 from 63/20

1^st number: 3 3/20, 2^nd number: 48/81

63/20 - 48/81 is 1381/540.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 20 and 81 is 1620
   
   Next, find the equivalent fraction of both fractional numbers with denominator 1620
2. For the 1st fraction, since 20 × 81 = 1620,
   63/20 = 63 × 81/20 × 81 = 5103/1620
3. Likewise, for the 2nd fraction, since 81 × 20 = 1620,
   48/81 = 48 × 20/81 × 20 = 960/1620
4. Subtract the two like fractions:
   5103/1620 - 960/1620 = 5103 - 960/1620 = 4143/1620
5. After reducing the fraction, the answer is 1381/540
6. In mixed form: 2301/540

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