Solve 14.4div12-8.1div0.9

$$14.4 \div 12-8.1 \div 0.9$$

Evaluate

$$-7.8$$

Solution Steps

Expand \frac{14.4}{12} by multiplying both numerator and the denominator by 10.

$$\frac{144}{120}-\frac{8.1}{0.9}$$

Reduce the fraction \frac{144}{120} to lowest terms by extracting and canceling out 24.

$$\frac{6}{5}-\frac{8.1}{0.9}$$

Expand \frac{8.1}{0.9} by multiplying both numerator and the denominator by 10.

$$\frac{6}{5}-\frac{81}{9}$$

Divide 81 by 9 to get 9.

$$\frac{6}{5}-9$$

Convert 9 to fraction \frac{45}{5}.

$$\frac{6}{5}-\frac{45}{5}$$

Since \frac{6}{5} and \frac{45}{5} have the same denominator, subtract them by subtracting their numerators.

$$\frac{6-45}{5}$$

Subtract 45 from 6 to get -39.

$$-\frac{39}{5}$$

Factor

$$-7.8$$