Solve {r}{123/10}{-77/10}

$$\left. \begin{array} { r } { 12 \frac { 3 } { 10 } } \\ { - 7 \frac { 7 } { 10 } } \end{array} \right.$$

Evaluate

$$\frac{23}{5}=4.6$$

Solution Steps

Multiply 12 and 10 to get 120.

$$\frac{120+3}{10}-\frac{7\times 10+7}{10}$$

Add 120 and 3 to get 123.

$$\frac{123}{10}-\frac{7\times 10+7}{10}$$

Multiply 7 and 10 to get 70.

$$\frac{123}{10}-\frac{70+7}{10}$$

Add 70 and 7 to get 77.

$$\frac{123}{10}-\frac{77}{10}$$

Since \frac{123}{10} and \frac{77}{10} have the same denominator, subtract them by subtracting their numerators.

$$\frac{123-77}{10}$$

Subtract 77 from 123 to get 46.

$$\frac{46}{10}$$

Reduce the fraction \frac{46}{10} to lowest terms by extracting and canceling out 2.

$$\frac{23}{5}$$

Factor

$$\frac{23}{5} = 4\frac{3}{5} = 4.6$$