Answers

Subtract 98/45 from 9/63

1^st number: 9/63, 2^nd number: 2 8/45

9/63 - 98/45 is -641/315.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 63 and 45 is 315
   
   Next, find the equivalent fraction of both fractional numbers with denominator 315
2. For the 1st fraction, since 63 × 5 = 315,
   9/63 = 9 × 5/63 × 5 = 45/315
3. Likewise, for the 2nd fraction, since 45 × 7 = 315,
   98/45 = 98 × 7/45 × 7 = 686/315
4. Subtract the two like fractions:
   45/315 - 686/315 = 45 - 686/315 = -641/315

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