Answers

Subtract 27/35 from 20/63

20/63 - 27/35 is -143/315.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 63 and 35 is 315
   
   Next, find the equivalent fraction of both fractional numbers with denominator 315
2. For the 1st fraction, since 63 × 5 = 315,
   20/63 = 20 × 5/63 × 5 = 100/315
3. Likewise, for the 2nd fraction, since 35 × 9 = 315,
   27/35 = 27 × 9/35 × 9 = 243/315
4. Subtract the two like fractions:
   100/315 - 243/315 = 100 - 243/315 = -143/315

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