Solve 1,25^-3+2,5^-2

$$1,25 ^ { - 3 } + 2,5 ^ { - 2 }$$

Evaluate

$$\frac{1251}{15625}=0,080064$$

Solution Steps

Calculate 25 to the power of -3 and get \frac{1}{15625}.

$$1\times \frac{1}{15625}+2\times 5^{-2}$$

Multiply 1 and \frac{1}{15625} to get \frac{1}{15625}.

$$\frac{1}{15625}+2\times 5^{-2}$$

Calculate 5 to the power of -2 and get \frac{1}{25}.

$$\frac{1}{15625}+2\times \frac{1}{25}$$

Multiply 2 and \frac{1}{25} to get \frac{2}{25}.

$$\frac{1}{15625}+\frac{2}{25}$$

Add \frac{1}{15625} and \frac{2}{25} to get \frac{1251}{15625}.

$$\frac{1251}{15625}$$

Factor

$$\frac{3 ^ {2} \cdot 139}{5 ^ {6}} = 0.080064$$