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2.05-\frac{81}{270}\times 4.5
Expand \frac{0.81}{2.7} by multiplying both numerator and the denominator by 100.
2.05-\frac{3}{10}\times 4.5
Reduce the fraction \frac{81}{270} to lowest terms by extracting and canceling out 27.
2.05-\frac{3}{10}\times \frac{9}{2}
Convert decimal number 4.5 to fraction \frac{45}{10}. Reduce the fraction \frac{45}{10} to lowest terms by extracting and canceling out 5.
2.05-\frac{3\times 9}{10\times 2}
Multiply \frac{3}{10} times \frac{9}{2} by multiplying numerator times numerator and denominator times denominator.
2.05-\frac{27}{20}
Do the multiplications in the fraction \frac{3\times 9}{10\times 2}.
\frac{41}{20}-\frac{27}{20}
Convert decimal number 2.05 to fraction \frac{205}{100}. Reduce the fraction \frac{205}{100} to lowest terms by extracting and canceling out 5.
\frac{41-27}{20}
Since \frac{41}{20} and \frac{27}{20} have the same denominator, subtract them by subtracting their numerators.
\frac{14}{20}
Subtract 27 from 41 to get 14.
\frac{7}{10}
Reduce the fraction \frac{14}{20} to lowest terms by extracting and canceling out 2.