Solve 84/5*21/2

$$8 \frac { 4 } { 5 } \times 2 \frac { 1 } { 2 }$$

Evaluate

$$22$$

Solution Steps

Multiply 8 and 5 to get 40.

$$\frac{40+4}{5}\times \frac{2\times 2+1}{2}$$

Add 40 and 4 to get 44.

$$\frac{44}{5}\times \frac{2\times 2+1}{2}$$

Multiply 2 and 2 to get 4.

$$\frac{44}{5}\times \frac{4+1}{2}$$

Add 4 and 1 to get 5.

$$\frac{44}{5}\times \frac{5}{2}$$

Multiply \frac{44}{5} times \frac{5}{2} by multiplying numerator times numerator and denominator times denominator.

$$\frac{44\times 5}{5\times 2}$$

Cancel out 5 in both numerator and denominator.

$$\frac{44}{2}$$

Divide 44 by 2 to get 22.

$$22$$

Factor

$$2\times 11$$