Answers

Subtract 56/81 from 90/15

1^st number: 6 0/15, 2^nd number: 56/81

90/15 - 56/81 is 430/81.

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,
   90/15 = 90 × 27/15 × 27 = 2430/405
3. Likewise, for the 2nd fraction, since 81 × 5 = 405,
   56/81 = 56 × 5/81 × 5 = 280/405
4. Subtract the two like fractions:
   2430/405 - 280/405 = 2430 - 280/405 = 2150/405
5. After reducing the fraction, the answer is 430/81
6. In mixed form: 525/81

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