Answers

Subtract 16/81 from 42/8

1^st number: 5 2/8, 2^nd number: 16/81

42/8 - 16/81 is 1637/324.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 8 and 81 is 648
   
   Next, find the equivalent fraction of both fractional numbers with denominator 648
2. For the 1st fraction, since 8 × 81 = 648,
   42/8 = 42 × 81/8 × 81 = 3402/648
3. Likewise, for the 2nd fraction, since 81 × 8 = 648,
   16/81 = 16 × 8/81 × 8 = 128/648
4. Subtract the two like fractions:
   3402/648 - 128/648 = 3402 - 128/648 = 3274/648
5. After reducing the fraction, the answer is 1637/324
6. In mixed form: 517/324

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