Solve 11/2*21/2

$$1 \frac { 1 } { 2 } \times 2 \frac { 1 } { 2 }$$

Evaluate

$$\frac{15}{4}=3.75$$

Solution Steps

Multiply 1 and 2 to get 2.

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

Add 2 and 1 to get 3.

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

Multiply 2 and 2 to get 4.

$$\frac{3}{2}\times \frac{4+1}{2}$$

Add 4 and 1 to get 5.

$$\frac{3}{2}\times \frac{5}{2}$$

Multiply \frac{3}{2} times \frac{5}{2} by multiplying numerator times numerator and denominator times denominator.

$$\frac{3\times 5}{2\times 2}$$

Do the multiplications in the fraction \frac{3\times 5}{2\times 2}.

$$\frac{15}{4}$$

Factor

$$\frac{3 \cdot 5}{2 ^ {2}} = 3\frac{3}{4} = 3.75$$