Answers

Subtract 20/14 from 63/81

1^st number: 63/81, 2^nd number: 1 6/14

63/81 - 20/14 is -41/63.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 81 and 14 is 1134
   
   Next, find the equivalent fraction of both fractional numbers with denominator 1134
2. For the 1st fraction, since 81 × 14 = 1134,
   63/81 = 63 × 14/81 × 14 = 882/1134
3. Likewise, for the 2nd fraction, since 14 × 81 = 1134,
   20/14 = 20 × 81/14 × 81 = 1620/1134
4. Subtract the two like fractions:
   882/1134 - 1620/1134 = 882 - 1620/1134 = -738/1134
5. After reducing the fraction, the answer is -41/63

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