Answers

Subtract 42/54 from 63/20

1^st number: 3 3/20, 2^nd number: 42/54

63/20 - 42/54 is 427/180.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 20 and 54 is 540
   
   Next, find the equivalent fraction of both fractional numbers with denominator 540
2. For the 1st fraction, since 20 × 27 = 540,
   63/20 = 63 × 27/20 × 27 = 1701/540
3. Likewise, for the 2nd fraction, since 54 × 10 = 540,
   42/54 = 42 × 10/54 × 10 = 420/540
4. Subtract the two like fractions:
   1701/540 - 420/540 = 1701 - 420/540 = 1281/540
5. After reducing the fraction, the answer is 427/180
6. In mixed form: 267/180

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