Answers

Subtract 75/63 from 15/75

1^st number: 15/75, 2^nd number: 1 12/63

15/75 - 75/63 is -104/105.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 75 and 63 is 1575
   
   Next, find the equivalent fraction of both fractional numbers with denominator 1575
2. For the 1st fraction, since 75 × 21 = 1575,
   15/75 = 15 × 21/75 × 21 = 315/1575
3. Likewise, for the 2nd fraction, since 63 × 25 = 1575,
   75/63 = 75 × 25/63 × 25 = 1875/1575
4. Subtract the two like fractions:
   315/1575 - 1875/1575 = 315 - 1875/1575 = -1560/1575
5. After reducing the fraction, the answer is -104/105

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