Answers

Subtract 35/81 from 42/2

1^st number: 21 0/2, 2^nd number: 35/81

42/2 - 35/81 is 1666/81.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 2 and 81 is 162
   
   Next, find the equivalent fraction of both fractional numbers with denominator 162
2. For the 1st fraction, since 2 × 81 = 162,
   42/2 = 42 × 81/2 × 81 = 3402/162
3. Likewise, for the 2nd fraction, since 81 × 2 = 162,
   35/81 = 35 × 2/81 × 2 = 70/162
4. Subtract the two like fractions:
   3402/162 - 70/162 = 3402 - 70/162 = 3332/162
5. After reducing the fraction, the answer is 1666/81
6. In mixed form: 2046/81

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