Answers

Subtract 20/63 from 12/18

12/18 - 20/63 is 22/63.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 18 and 63 is 126
   
   Next, find the equivalent fraction of both fractional numbers with denominator 126
2. For the 1st fraction, since 18 × 7 = 126,
   12/18 = 12 × 7/18 × 7 = 84/126
3. Likewise, for the 2nd fraction, since 63 × 2 = 126,
   20/63 = 20 × 2/63 × 2 = 40/126
4. Subtract the two like fractions:
   84/126 - 40/126 = 84 - 40/126 = 44/126
5. After reducing the fraction, the answer is 22/63

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