Solve 121-0.4^5/0.6

$$12 \frac{ 1- { 0.4 }^{ 5 } }{ 0.6 }$$

Evaluate

$$19.7952$$

Solution Steps

Calculate 0.4 to the power of 5 and get 0.01024.

$$12\times \frac{1-0.01024}{0.6}$$

Subtract 0.01024 from 1 to get 0.98976.

$$12\times \frac{0.98976}{0.6}$$

Expand \frac{0.98976}{0.6} by multiplying both numerator and the denominator by 100000.

$$12\times \frac{98976}{60000}$$

Reduce the fraction \frac{98976}{60000} to lowest terms by extracting and canceling out 96.

$$12\times \frac{1031}{625}$$

Express 12\times \frac{1031}{625} as a single fraction.

$$\frac{12\times 1031}{625}$$

Multiply 12 and 1031 to get 12372.

$$\frac{12372}{625}$$

Factor

$$\frac{3 \cdot 1031 \cdot 2 ^ {2}}{5 ^ {4}} = 19\frac{497}{625} = 19.7952$$