Solve pi*0.1*0.1*12*84/100

$$\pi \times 0.1 \times 0.1 \times 12 \times \frac { 84 } { 100 }$$

Evaluate

$$\frac{63\pi }{625}\approx 0.316672539$$

Solution Steps

Multiply 0.1 and 0.1 to get 0.01.

$$\pi \times 0.01\times 12\times \frac{84}{100}$$

Multiply 0.01 and 12 to get 0.12.

$$\pi \times 0.12\times \frac{84}{100}$$

Reduce the fraction \frac{84}{100} to lowest terms by extracting and canceling out 4.

$$\pi \times 0.12\times \frac{21}{25}$$

Convert decimal number 0.12 to fraction \frac{12}{100}. Reduce the fraction \frac{12}{100} to lowest terms by extracting and canceling out 4.

$$\pi \times \frac{3}{25}\times \frac{21}{25}$$

Multiply \frac{3}{25} times \frac{21}{25} by multiplying numerator times numerator and denominator times denominator.

$$\pi \times \frac{3\times 21}{25\times 25}$$

Do the multiplications in the fraction \frac{3\times 21}{25\times 25}.

$$\pi \times \frac{63}{625}$$