Answers

Subtract 3/54 from 84/63

1^st number: 1 21/63, 2^nd number: 3/54

84/63 - 3/54 is 23/18.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 63 and 54 is 378
   
   Next, find the equivalent fraction of both fractional numbers with denominator 378
2. For the 1st fraction, since 63 × 6 = 378,
   84/63 = 84 × 6/63 × 6 = 504/378
3. Likewise, for the 2nd fraction, since 54 × 7 = 378,
   3/54 = 3 × 7/54 × 7 = 21/378
4. Subtract the two like fractions:
   504/378 - 21/378 = 504 - 21/378 = 483/378
5. After reducing the fraction, the answer is 23/18
6. In mixed form: 15/18

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