Solve (15.5*1/100)*4.2

$$( 15.5 \times \frac { 1 } { 100 } ) \times 4.2$$

Evaluate

$$0.651$$

Solution Steps

Convert decimal number 15.5 to fraction \frac{155}{10}. Reduce the fraction \frac{155}{10} to lowest terms by extracting and canceling out 5.

$$\frac{31}{2}\times \frac{1}{100}\times 4.2$$

Multiply \frac{31}{2} times \frac{1}{100} by multiplying numerator times numerator and denominator times denominator.

$$\frac{31\times 1}{2\times 100}\times 4.2$$

Do the multiplications in the fraction \frac{31\times 1}{2\times 100}.

$$\frac{31}{200}\times 4.2$$

Convert decimal number 4.2 to fraction \frac{42}{10}. Reduce the fraction \frac{42}{10} to lowest terms by extracting and canceling out 2.

$$\frac{31}{200}\times \frac{21}{5}$$

Multiply \frac{31}{200} times \frac{21}{5} by multiplying numerator times numerator and denominator times denominator.

$$\frac{31\times 21}{200\times 5}$$

Do the multiplications in the fraction \frac{31\times 21}{200\times 5}.

$$\frac{651}{1000}$$

Factor

$$\frac{3 \cdot 7 \cdot 31}{2 ^ {3} \cdot 5 ^ {3}} = 0.651$$