Answers

Subtract 90/63 from 8/15

1^st number: 8/15, 2^nd number: 1 27/63

8/15 - 90/63 is -94/105.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 15 and 63 is 315
   
   Next, find the equivalent fraction of both fractional numbers with denominator 315
2. For the 1st fraction, since 15 × 21 = 315,
   8/15 = 8 × 21/15 × 21 = 168/315
3. Likewise, for the 2nd fraction, since 63 × 5 = 315,
   90/63 = 90 × 5/63 × 5 = 450/315
4. Subtract the two like fractions:
   168/315 - 450/315 = 168 - 450/315 = -282/315
5. After reducing the fraction, the answer is -94/105

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