Answers

Subtract 90/81 from 16/60

1^st number: 16/60, 2^nd number: 1 9/81

16/60 - 90/81 is -38/45.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 60 and 81 is 1620
   
   Next, find the equivalent fraction of both fractional numbers with denominator 1620
2. For the 1st fraction, since 60 × 27 = 1620,
   16/60 = 16 × 27/60 × 27 = 432/1620
3. Likewise, for the 2nd fraction, since 81 × 20 = 1620,
   90/81 = 90 × 20/81 × 20 = 1800/1620
4. Subtract the two like fractions:
   432/1620 - 1800/1620 = 432 - 1800/1620 = -1368/1620
5. After reducing the fraction, the answer is -38/45

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