Answers

Subtract 40/81 from 45/15

1^st number: 3 0/15, 2^nd number: 40/81

45/15 - 40/81 is 203/81.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 15 and 81 is 405
   
   Next, find the equivalent fraction of both fractional numbers with denominator 405
2. For the 1st fraction, since 15 × 27 = 405,
   45/15 = 45 × 27/15 × 27 = 1215/405
3. Likewise, for the 2nd fraction, since 81 × 5 = 405,
   40/81 = 40 × 5/81 × 5 = 200/405
4. Subtract the two like fractions:
   1215/405 - 200/405 = 1215 - 200/405 = 1015/405
5. After reducing the fraction, the answer is 203/81
6. In mixed form: 241/81

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