Solve 18:(12-3.2)-2.(26-12.3)=

$$18 : ( 12 - 3.2 ) - 2 . ( 26 - 12.3 ) =$$

Evaluate

$$\frac{1}{22}\approx 0.045454545$$

Solution Steps

Subtract 3.2 from 12 to get 8.8.

$$\frac{18}{8.8}-2$$

Expand \frac{18}{8.8} by multiplying both numerator and the denominator by 10.

$$\frac{180}{88}-2$$

Reduce the fraction \frac{180}{88} to lowest terms by extracting and canceling out 4.

$$\frac{45}{22}-2$$

Convert 2 to fraction \frac{44}{22}.

$$\frac{45}{22}-\frac{44}{22}$$

Since \frac{45}{22} and \frac{44}{22} have the same denominator, subtract them by subtracting their numerators.

$$\frac{45-44}{22}$$

Subtract 44 from 45 to get 1.

$$\frac{1}{22}$$

Factor

$$\frac{1}{2 \cdot 11} = 0.045454545454545456$$