Solve 829:100-0,5

$$829 : 100 - 0,5$$

Evaluate

$$7,79$$

Solution Steps

Convert decimal number 0,5 to fraction \frac{5}{10}. Reduce the fraction \frac{5}{10} to lowest terms by extracting and canceling out 5.

$$\frac{829}{100}-\frac{1}{2}$$

Least common multiple of 100 and 2 is 100. Convert \frac{829}{100} and \frac{1}{2} to fractions with denominator 100.

$$\frac{829}{100}-\frac{50}{100}$$

Since \frac{829}{100} and \frac{50}{100} have the same denominator, subtract them by subtracting their numerators.

$$\frac{829-50}{100}$$

Subtract 50 from 829 to get 779.

$$\frac{779}{100}$$

Factor

$$\frac{19 \cdot 41}{2 ^ {2} \cdot 5 ^ {2}} = 7\frac{79}{100} = 7.79$$