Solve 22/7*4.2

$$\frac{ 22 }{ 7 } \times 4.2$$

Evaluate

$$13.2$$

Solution Steps

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.

$$\frac{22}{7}\times \frac{21}{5}$$

Multiply \frac{22}{7} times \frac{21}{5} by multiplying numerator times numerator and denominator times denominator.

$$\frac{22\times 21}{7\times 5}$$

Do the multiplications in the fraction \frac{22\times 21}{7\times 5}.

$$\frac{462}{35}$$

Reduce the fraction \frac{462}{35} to lowest terms by extracting and canceling out 7.

$$\frac{66}{5}$$

Factor

$$\frac{2 \cdot 3 \cdot 11}{5} = 13\frac{1}{5} = 13.2$$