Solve 1/15*1+1/3*90

$$\frac { 1 } { 15 \cdot 1 } + \frac { 1 } { 3 \cdot 90 }$$

Evaluate

$$\frac{19}{270}\approx 0.07037037$$

Solution Steps

Multiply 15 and 1 to get 15.

$$\frac{1}{15}+\frac{1}{3\times 90}$$

Multiply 3 and 90 to get 270.

$$\frac{1}{15}+\frac{1}{270}$$

Least common multiple of 15 and 270 is 270. Convert \frac{1}{15} and \frac{1}{270} to fractions with denominator 270.

$$\frac{18}{270}+\frac{1}{270}$$

Since \frac{18}{270} and \frac{1}{270} have the same denominator, add them by adding their numerators.

$$\frac{18+1}{270}$$

Add 18 and 1 to get 19.

$$\frac{19}{270}$$

Factor

$$\frac{19}{2 \cdot 3 ^ {3} \cdot 5} = 0.07037037037037037$$