Solve R_{V}=1/10+1/20*1/15

$$R _ { V } = \frac { 1 } { 10 } + \frac { 1 } { 20 } \cdot \frac { 1 } { 15 }$$

Solve for R_V

$$R_{V}=\frac{31}{300}\approx 0.103333333$$

Steps for Solving Linear Equation

Multiply \frac{1}{20} times \frac{1}{15} by multiplying numerator times numerator and denominator times denominator.

$$R_{V}=\frac{1}{10}+\frac{1\times 1}{20\times 15}$$

Do the multiplications in the fraction \frac{1\times 1}{20\times 15}.

$$R_{V}=\frac{1}{10}+\frac{1}{300}$$

Least common multiple of 10 and 300 is 300. Convert \frac{1}{10} and \frac{1}{300} to fractions with denominator 300.

$$R_{V}=\frac{30}{300}+\frac{1}{300}$$

Since \frac{30}{300} and \frac{1}{300} have the same denominator, add them by adding their numerators.

$$R_{V}=\frac{30+1}{300}$$

Add 30 and 1 to get 31.

$$R_{V}=\frac{31}{300}$$

Assign R_V

$$R_{V}≔\frac{31}{300}$$