Answers

Subtract 25/63 from 7/45

7/45 - 25/63 is -76/315.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 45 and 63 is 315
   
   Next, find the equivalent fraction of both fractional numbers with denominator 315
2. For the 1st fraction, since 45 × 7 = 315,
   7/45 = 7 × 7/45 × 7 = 49/315
3. Likewise, for the 2nd fraction, since 63 × 5 = 315,
   25/63 = 25 × 5/63 × 5 = 125/315
4. Subtract the two like fractions:
   49/315 - 125/315 = 49 - 125/315 = -76/315

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