Answers

Subtract 4/21 from 63/54

1^st number: 1 9/54, 2^nd number: 4/21

63/54 - 4/21 is 41/42.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 54 and 21 is 378
   
   Next, find the equivalent fraction of both fractional numbers with denominator 378
2. For the 1st fraction, since 54 × 7 = 378,
   63/54 = 63 × 7/54 × 7 = 441/378
3. Likewise, for the 2nd fraction, since 21 × 18 = 378,
   4/21 = 4 × 18/21 × 18 = 72/378
4. Subtract the two like fractions:
   441/378 - 72/378 = 441 - 72/378 = 369/378
5. After reducing the fraction, the answer is 41/42

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