Solve (7.31*4.5-6.31/4.5)*10^-6

$$(7.31 \times 4.5- \frac{ 6.31 }{ 4.5 } ) \times { 10 }^{ -6 }$$

Evaluate

$$\frac{56687}{1800000000}\approx 0.000031493$$

Solution Steps

Multiply 7.31 and 4.5 to get 32.895.

$$\left(32.895-\frac{6.31}{4.5}\right)\times 10^{-6}$$

Expand \frac{6.31}{4.5} by multiplying both numerator and the denominator by 100.

$$\left(32.895-\frac{631}{450}\right)\times 10^{-6}$$

Subtract \frac{631}{450} from 32.895 to get \frac{56687}{1800}.

$$\frac{56687}{1800}\times 10^{-6}$$

Calculate 10 to the power of -6 and get \frac{1}{1000000}.

$$\frac{56687}{1800}\times \frac{1}{1000000}$$

Multiply \frac{56687}{1800} and \frac{1}{1000000} to get \frac{56687}{1800000000}.

$$\frac{56687}{1800000000}$$

Factor

$$\frac{56687}{2 ^ {9} \cdot 3 ^ {2} \cdot 5 ^ {8}} = 3.149277777777778 \times 10^{-5}$$