Solve 3*5+4*6+5*7+6*8+7*6+8*8/5+6+7+8+6+8

$$\frac{ 3 \times 5+4 \times 6+5 \times 7+6 \times 8+7 \times 6+8 \times 8 }{ 5+6+7+8+6+8 }$$

Evaluate

$$\frac{57}{10}=5.7$$

Solution Steps

Multiply 3 and 5 to get 15. Multiply 4 and 6 to get 24. Multiply 5 and 7 to get 35. Multiply 6 and 8 to get 48. Multiply 7 and 6 to get 42. Multiply 8 and 8 to get 64.

$$\frac{15+24+35+48+42+64}{5+6+7+8+6+8}$$

Add 15 and 24 to get 39.

$$\frac{39+35+48+42+64}{5+6+7+8+6+8}$$

Add 39 and 35 to get 74.

$$\frac{74+48+42+64}{5+6+7+8+6+8}$$

Add 74 and 48 to get 122.

$$\frac{122+42+64}{5+6+7+8+6+8}$$

Add 122 and 42 to get 164.

$$\frac{164+64}{5+6+7+8+6+8}$$

Add 164 and 64 to get 228.

$$\frac{228}{5+6+7+8+6+8}$$

Add 5 and 6 to get 11.

$$\frac{228}{11+7+8+6+8}$$

Add 11 and 7 to get 18.

$$\frac{228}{18+8+6+8}$$

Add 18 and 8 to get 26.

$$\frac{228}{26+6+8}$$

Add 26 and 6 to get 32.

$$\frac{228}{32+8}$$

Add 32 and 8 to get 40.

$$\frac{228}{40}$$

Reduce the fraction \frac{228}{40} to lowest terms by extracting and canceling out 4.

$$\frac{57}{10}$$

Factor

$$\frac{3 \cdot 19}{2 \cdot 5} = 5\frac{7}{10} = 5.7$$