Answers

Subtract 63/5 from 81/15

1^st number: 5 6/15, 2^nd number: 12 3/5

81/15 - 63/5 is -36/5.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 15 and 5 is 15
   
   Next, find the equivalent fraction of both fractional numbers with denominator 15
2. For the 1st fraction, since 15 × 1 = 15,
   81/15 = 81 × 1/15 × 1 = 81/15
3. Likewise, for the 2nd fraction, since 5 × 3 = 15,
   63/5 = 63 × 3/5 × 3 = 189/15
4. Subtract the two like fractions:
   81/15 - 189/15 = 81 - 189/15 = -108/15
5. After reducing the fraction, the answer is -36/5

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