Answers

Subtract 15/5 from 54/63

1^st number: 54/63, 2^nd number: 3 0/5

54/63 - 15/5 is -15/7.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 63 and 5 is 315
   
   Next, find the equivalent fraction of both fractional numbers with denominator 315
2. For the 1st fraction, since 63 × 5 = 315,
   54/63 = 54 × 5/63 × 5 = 270/315
3. Likewise, for the 2nd fraction, since 5 × 63 = 315,
   15/5 = 15 × 63/5 × 63 = 945/315
4. Subtract the two like fractions:
   270/315 - 945/315 = 270 - 945/315 = -675/315
5. After reducing the fraction, the answer is -15/7

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