Solve [(3,40-2,80):2,80]*100=

$$[ ( 3,40 - 2,80 ) : 2,80 ] \times 100 =$$

Evaluate

$$\frac{150}{7}\approx 21,428571429$$

Solution Steps

Subtract 2,8 from 3,4 to get 0,6.

$$\frac{0,6}{2,8}\times 100$$

Expand \frac{0,6}{2,8} by multiplying both numerator and the denominator by 10.

$$\frac{6}{28}\times 100$$

Reduce the fraction \frac{6}{28} to lowest terms by extracting and canceling out 2.

$$\frac{3}{14}\times 100$$

Express \frac{3}{14}\times 100 as a single fraction.

$$\frac{3\times 100}{14}$$

Multiply 3 and 100 to get 300.

$$\frac{300}{14}$$

Reduce the fraction \frac{300}{14} to lowest terms by extracting and canceling out 2.

$$\frac{150}{7}$$

Factor

$$\frac{2 \cdot 3 \cdot 5 ^ {2}}{7} = 21\frac{3}{7} = 21.428571428571427$$