Solve 2.1*4/2*0.004

$$\frac{ 2.1 \times 4 }{ 2 } \times 0.004$$

Evaluate

$$0.0168$$

Solution Steps

Multiply 2.1 and 4 to get 8.4.

$$\frac{8.4}{2}\times 0.004$$

Expand \frac{8.4}{2} by multiplying both numerator and the denominator by 10.

$$\frac{84}{20}\times 0.004$$

Reduce the fraction \frac{84}{20} to lowest terms by extracting and canceling out 4.

$$\frac{21}{5}\times 0.004$$

Convert decimal number 0.004 to fraction \frac{4}{1000}. Reduce the fraction \frac{4}{1000} to lowest terms by extracting and canceling out 4.

$$\frac{21}{5}\times \frac{1}{250}$$

Multiply \frac{21}{5} times \frac{1}{250} by multiplying numerator times numerator and denominator times denominator.

$$\frac{21\times 1}{5\times 250}$$

Do the multiplications in the fraction \frac{21\times 1}{5\times 250}.

$$\frac{21}{1250}$$

Factor

$$\frac{3 \cdot 7}{2 \cdot 5 ^ {4}} = 0.0168$$