Solve 21/3-12/3

$$2 \frac { 1 } { 3 } - 1 \frac { 2 } { 3 }$$

Evaluate

$$\frac{2}{3}\approx 0.666666667$$

Solution Steps

Multiply 2 and 3 to get 6.

$$\frac{6+1}{3}-\frac{1\times 3+2}{3}$$

Add 6 and 1 to get 7.

$$\frac{7}{3}-\frac{1\times 3+2}{3}$$

Multiply 1 and 3 to get 3.

$$\frac{7}{3}-\frac{3+2}{3}$$

Add 3 and 2 to get 5.

$$\frac{7}{3}-\frac{5}{3}$$

Since \frac{7}{3} and \frac{5}{3} have the same denominator, subtract them by subtracting their numerators.

$$\frac{7-5}{3}$$

Subtract 5 from 7 to get 2.

$$\frac{2}{3}$$

Factor

$$\frac{2}{3} = 0.6666666666666666$$