Solve 1(3)+2(2)+3(5)+4(7)/3+2+5+7

$$\frac { 1 ( 3 ) + 2 ( 2 ) + 3 ( 5 ) + 4 ( 7 ) } { 3 + 2 + 5 + 7 }$$

Evaluate

$$\frac{50}{17}\approx 2.941176471$$

Solution Steps

Multiply 1 and 3 to get 3. Multiply 2 and 2 to get 4. Multiply 3 and 5 to get 15. Multiply 4 and 7 to get 28.

$$\frac{3+4+15+28}{3+2+5+7}$$

Add 3 and 4 to get 7.

$$\frac{7+15+28}{3+2+5+7}$$

Add 7 and 15 to get 22.

$$\frac{22+28}{3+2+5+7}$$

Add 22 and 28 to get 50.

$$\frac{50}{3+2+5+7}$$

Add 3 and 2 to get 5.

$$\frac{50}{5+5+7}$$

Add 5 and 5 to get 10.

$$\frac{50}{10+7}$$

Add 10 and 7 to get 17.

$$\frac{50}{17}$$

Factor

$$\frac{2 \cdot 5 ^ {2}}{17} = 2\frac{16}{17} = 2.9411764705882355$$