Solve 80+(47div10)*0.9*1.1=

$$80+(47 \div 10) \times 0.9 \times 1.1=$$

Evaluate

$$84.653$$

Solution Steps

Convert decimal number 0.9 to fraction \frac{9}{10}.

$$80+\frac{47}{10}\times \frac{9}{10}\times 1.1$$

Multiply \frac{47}{10} times \frac{9}{10} by multiplying numerator times numerator and denominator times denominator.

$$80+\frac{47\times 9}{10\times 10}\times 1.1$$

Do the multiplications in the fraction \frac{47\times 9}{10\times 10}.

$$80+\frac{423}{100}\times 1.1$$

Convert decimal number 1.1 to fraction \frac{11}{10}.

$$80+\frac{423}{100}\times \frac{11}{10}$$

Multiply \frac{423}{100} times \frac{11}{10} by multiplying numerator times numerator and denominator times denominator.

$$80+\frac{423\times 11}{100\times 10}$$

Do the multiplications in the fraction \frac{423\times 11}{100\times 10}.

$$80+\frac{4653}{1000}$$

Convert 80 to fraction \frac{80000}{1000}.

$$\frac{80000}{1000}+\frac{4653}{1000}$$

Since \frac{80000}{1000} and \frac{4653}{1000} have the same denominator, add them by adding their numerators.

$$\frac{80000+4653}{1000}$$

Add 80000 and 4653 to get 84653.

$$\frac{84653}{1000}$$

Factor

$$\frac{84653}{2 ^ {3} \cdot 5 ^ {3}} = 84\frac{653}{1000} = 84.653$$