Solve 3.8+(4-1)*5^-22*4=

$$3.8 + ( 4 - 1 ) \cdot 5 ^ { - 2 } 2 \cdot 4 =$$

Evaluate

$$4.76$$

Solution Steps

Subtract 1 from 4 to get 3.

$$3.8+3\times 5^{-2}\times 2\times 4$$

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

$$3.8+3\times \frac{1}{25}\times 2\times 4$$

Multiply 3 and \frac{1}{25} to get \frac{3}{25}.

$$3.8+\frac{3}{25}\times 2\times 4$$

Multiply \frac{3}{25} and 2 to get \frac{6}{25}.

$$3.8+\frac{6}{25}\times 4$$

Multiply \frac{6}{25} and 4 to get \frac{24}{25}.

$$3.8+\frac{24}{25}$$

Add 3.8 and \frac{24}{25} to get \frac{119}{25}.

$$\frac{119}{25}$$

Factor

$$\frac{7 \cdot 17}{5 ^ {2}} = 4\frac{19}{25} = 4.76$$