Answers

Subtract 70/81 from 28/16

1^st number: 1 12/16, 2^nd number: 70/81

28/16 - 70/81 is 287/324.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 16 and 81 is 1296
   
   Next, find the equivalent fraction of both fractional numbers with denominator 1296
2. For the 1st fraction, since 16 × 81 = 1296,
   28/16 = 28 × 81/16 × 81 = 2268/1296
3. Likewise, for the 2nd fraction, since 81 × 16 = 1296,
   70/81 = 70 × 16/81 × 16 = 1120/1296
4. Subtract the two like fractions:
   2268/1296 - 1120/1296 = 2268 - 1120/1296 = 1148/1296
5. After reducing the fraction, the answer is 287/324

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