Solve -2(0,5-0,7)+11/2

$$- 2 ( 0,5 - 0,7 ) + 1 \frac { 1 } { 2 }$$

Evaluate

$$1,9$$

Solution Steps

Subtract 0,7 from 0,5 to get -0,2.

$$-2\left(-0,2\right)+\frac{1\times 2+1}{2}$$

Multiply -2 and -0,2 to get 0,4.

$$0,4+\frac{1\times 2+1}{2}$$

Multiply 1 and 2 to get 2.

$$0,4+\frac{2+1}{2}$$

Add 2 and 1 to get 3.

$$0,4+\frac{3}{2}$$

Convert decimal number 0,4 to fraction \frac{4}{10}. Reduce the fraction \frac{4}{10} to lowest terms by extracting and canceling out 2.

$$\frac{2}{5}+\frac{3}{2}$$

Least common multiple of 5 and 2 is 10. Convert \frac{2}{5} and \frac{3}{2} to fractions with denominator 10.

$$\frac{4}{10}+\frac{15}{10}$$

Since \frac{4}{10} and \frac{15}{10} have the same denominator, add them by adding their numerators.

$$\frac{4+15}{10}$$

Add 4 and 15 to get 19.

$$\frac{19}{10}$$

Factor

$$\frac{19}{2 \cdot 5} = 1\frac{9}{10} = 1.9$$