Solve 4.2:0.8

$$4.2 : 0.8$$

Evaluate

$$5.25$$

Solution Steps

Expand \frac{4.2}{0.8} by multiplying both numerator and the denominator by 10.

$$\frac{42}{8}$$

Reduce the fraction \frac{42}{8} to lowest terms by extracting and canceling out 2.

$$\frac{21}{4}$$

Factor

$$\frac{3 \cdot 7}{2 ^ {2}} = 5\frac{1}{4} = 5.25$$