Answers

Subtract 40/63 from 9/15

9/15 - 40/63 is -11/315.

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,
   9/15 = 9 × 21/15 × 21 = 189/315
3. Likewise, for the 2nd fraction, since 63 × 5 = 315,
   40/63 = 40 × 5/63 × 5 = 200/315
4. Subtract the two like fractions:
   189/315 - 200/315 = 189 - 200/315 = -11/315

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