Solve 12/4*21/4=

$$1 \frac { 2 } { 4 } \times 2 \frac { 1 } { 4 } =$$

Evaluate

$$\frac{27}{8}=3.375$$

Solution Steps

Multiply 1 and 4 to get 4.

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

Add 4 and 2 to get 6.

$$\frac{6}{4}\times \frac{2\times 4+1}{4}$$

Reduce the fraction \frac{6}{4} to lowest terms by extracting and canceling out 2.

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

Multiply 2 and 4 to get 8.

$$\frac{3}{2}\times \frac{8+1}{4}$$

Add 8 and 1 to get 9.

$$\frac{3}{2}\times \frac{9}{4}$$

Multiply \frac{3}{2} times \frac{9}{4} by multiplying numerator times numerator and denominator times denominator.

$$\frac{3\times 9}{2\times 4}$$

Do the multiplications in the fraction \frac{3\times 9}{2\times 4}.

$$\frac{27}{8}$$

Factor

$$\frac{3 ^ {3}}{2 ^ {3}} = 3\frac{3}{8} = 3.375$$