Solve 7.5+20.8div0.64

$$7.5+20.8 \div 0.64$$

Evaluate

$$40$$

Solution Steps

Expand \frac{20.8}{0.64} by multiplying both numerator and the denominator by 100.

$$7.5+\frac{2080}{64}$$

Reduce the fraction \frac{2080}{64} to lowest terms by extracting and canceling out 32.

$$7.5+\frac{65}{2}$$

Convert decimal number 7.5 to fraction \frac{75}{10}. Reduce the fraction \frac{75}{10} to lowest terms by extracting and canceling out 5.

$$\frac{15}{2}+\frac{65}{2}$$

Since \frac{15}{2} and \frac{65}{2} have the same denominator, add them by adding their numerators.

$$\frac{15+65}{2}$$

Add 15 and 65 to get 80.

$$\frac{80}{2}$$

Divide 80 by 2 to get 40.

$$40$$

Factor

$$5\times 2^{3}$$