Solve 42/3*21/4

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

Evaluate

$$\frac{21}{2}=10.5$$

Solution Steps

Multiply 4 and 3 to get 12.

$$\frac{12+2}{3}\times \frac{2\times 4+1}{4}$$

Add 12 and 2 to get 14.

$$\frac{14}{3}\times \frac{2\times 4+1}{4}$$

Multiply 2 and 4 to get 8.

$$\frac{14}{3}\times \frac{8+1}{4}$$

Add 8 and 1 to get 9.

$$\frac{14}{3}\times \frac{9}{4}$$

Multiply \frac{14}{3} times \frac{9}{4} by multiplying numerator times numerator and denominator times denominator.

$$\frac{14\times 9}{3\times 4}$$

Do the multiplications in the fraction \frac{14\times 9}{3\times 4}.

$$\frac{126}{12}$$

Reduce the fraction \frac{126}{12} to lowest terms by extracting and canceling out 6.

$$\frac{21}{2}$$

Factor

$$\frac{3 \cdot 7}{2} = 10\frac{1}{2} = 10.5$$