Solve (15*1.54+10*1.43+16*0.79+4*0.78)div45

$$(15 \cdot 1.54+10 \cdot 1.43+16 \cdot 0.79+4 \cdot 0.78) \div 45$$

Evaluate

$$\frac{443}{375}\approx 1.181333333$$

Solution Steps

Multiply 15 and 1.54 to get 23.1.

$$\frac{23.1+10\times 1.43+16\times 0.79+4\times 0.78}{45}$$

Multiply 10 and 1.43 to get 14.3.

$$\frac{23.1+14.3+16\times 0.79+4\times 0.78}{45}$$

Add 23.1 and 14.3 to get 37.4.

$$\frac{37.4+16\times 0.79+4\times 0.78}{45}$$

Multiply 16 and 0.79 to get 12.64.

$$\frac{37.4+12.64+4\times 0.78}{45}$$

Add 37.4 and 12.64 to get 50.04.

$$\frac{50.04+4\times 0.78}{45}$$

Multiply 4 and 0.78 to get 3.12.

$$\frac{50.04+3.12}{45}$$

Add 50.04 and 3.12 to get 53.16.

$$\frac{53.16}{45}$$

Expand \frac{53.16}{45} by multiplying both numerator and the denominator by 100.

$$\frac{5316}{4500}$$

Reduce the fraction \frac{5316}{4500} to lowest terms by extracting and canceling out 12.

$$\frac{443}{375}$$

Factor

$$\frac{443}{3 \cdot 5 ^ {3}} = 1\frac{68}{375} = 1.1813333333333333$$