Basic Math Examples

$(1.8) \cdot (- 1 \frac{2}{5})$

Step 1

Convert $1 \frac{2}{5}$ to an improper fraction.

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Step 1.1

A mixed number is an addition of its whole and fractional parts.

$1.8 \cdot (- (1 + \frac{2}{5}))$

Step 1.2

Add $1$ and $\frac{2}{5}$ .

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Step 1.2.1

Write $1$ as a fraction with a common denominator.

$1.8 \cdot (- (\frac{5}{5} + \frac{2}{5}))$

Step 1.2.2

Combine the numerators over the common denominator.

$1.8 \cdot (- \frac{5 + 2}{5})$

Step 1.2.3

Add $5$ and $2$ .

$1.8 \cdot (- \frac{7}{5})$

Step 2

Multiply $1.8 (- \frac{7}{5})$ .

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Step 2.1

Multiply $- 1$ by $1.8$ .

$- 1.8 (\frac{7}{5})$

Step 2.2

Combine $- 1.8$ and $\frac{7}{5}$ .

$\frac{- 1.8 \cdot 7}{5}$

Step 2.3

Multiply $- 1.8$ by $7$ .

$\frac{- 12.6}{5}$

Step 3

Divide $- 12.6$ by $5$ .

$- 2.52$