Solve 7/10+0,03-1/5

$$\frac { 7 } { 10 } + 0,03 - \frac { 1 } { 5 }$$

Evaluate

$$0,53$$

Solution Steps

Convert decimal number 0,03 to fraction \frac{3}{100}.

$$\frac{7}{10}+\frac{3}{100}-\frac{1}{5}$$

Least common multiple of 10 and 100 is 100. Convert \frac{7}{10} and \frac{3}{100} to fractions with denominator 100.

$$\frac{70}{100}+\frac{3}{100}-\frac{1}{5}$$

Since \frac{70}{100} and \frac{3}{100} have the same denominator, add them by adding their numerators.

$$\frac{70+3}{100}-\frac{1}{5}$$

Add 70 and 3 to get 73.

$$\frac{73}{100}-\frac{1}{5}$$

Least common multiple of 100 and 5 is 100. Convert \frac{73}{100} and \frac{1}{5} to fractions with denominator 100.

$$\frac{73}{100}-\frac{20}{100}$$

Since \frac{73}{100} and \frac{20}{100} have the same denominator, subtract them by subtracting their numerators.

$$\frac{73-20}{100}$$

Subtract 20 from 73 to get 53.

$$\frac{53}{100}$$

Factor

$$\frac{53}{2 ^ {2} \cdot 5 ^ {2}} = 0.53$$