Answers

Subtract 75/63 from 90/25

1^st number: 3 15/25, 2^nd number: 1 12/63

90/25 - 75/63 is 253/105.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 25 and 63 is 1575
   
   Next, find the equivalent fraction of both fractional numbers with denominator 1575
2. For the 1st fraction, since 25 × 63 = 1575,
   90/25 = 90 × 63/25 × 63 = 5670/1575
3. Likewise, for the 2nd fraction, since 63 × 25 = 1575,
   75/63 = 75 × 25/63 × 25 = 1875/1575
4. Subtract the two like fractions:
   5670/1575 - 1875/1575 = 5670 - 1875/1575 = 3795/1575
5. After reducing the fraction, the answer is 253/105
6. In mixed form: 243/105

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