Answers

Subtract 16/12 from 54/63

1^st number: 54/63, 2^nd number: 1 4/12

54/63 - 16/12 is -10/21.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 63 and 12 is 252
   
   Next, find the equivalent fraction of both fractional numbers with denominator 252
2. For the 1st fraction, since 63 × 4 = 252,
   54/63 = 54 × 4/63 × 4 = 216/252
3. Likewise, for the 2nd fraction, since 12 × 21 = 252,
   16/12 = 16 × 21/12 × 21 = 336/252
4. Subtract the two like fractions:
   216/252 - 336/252 = 216 - 336/252 = -120/252
5. After reducing the fraction, the answer is -10/21

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