Answers

Subtract 63/4 from 30/18

1^st number: 1 12/18, 2^nd number: 15 3/4

30/18 - 63/4 is -169/12.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 18 and 4 is 36
   
   Next, find the equivalent fraction of both fractional numbers with denominator 36
2. For the 1st fraction, since 18 × 2 = 36,
   30/18 = 30 × 2/18 × 2 = 60/36
3. Likewise, for the 2nd fraction, since 4 × 9 = 36,
   63/4 = 63 × 9/4 × 9 = 567/36
4. Subtract the two like fractions:
   60/36 - 567/36 = 60 - 567/36 = -507/36
5. After reducing the fraction, the answer is -169/12

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