Answers

Subtract 21/6 from 56/63

1^st number: 56/63, 2^nd number: 3 3/6

56/63 - 21/6 is -47/18.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 63 and 6 is 126
   
   Next, find the equivalent fraction of both fractional numbers with denominator 126
2. For the 1st fraction, since 63 × 2 = 126,
   56/63 = 56 × 2/63 × 2 = 112/126
3. Likewise, for the 2nd fraction, since 6 × 21 = 126,
   21/6 = 21 × 21/6 × 21 = 441/126
4. Subtract the two like fractions:
   112/126 - 441/126 = 112 - 441/126 = -329/126
5. After reducing the fraction, the answer is -47/18

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