Solve -0.3+4/5*(-21/2)

$$- 0.3 + \frac { 4 } { 5 } \times ( - 2 \frac { 1 } { 2 } )$$

Evaluate

$$-2.3$$

Solution Steps

Multiply 2 and 2 to get 4.

$$-0.3+\frac{4}{5}\left(-\frac{4+1}{2}\right)$$

Add 4 and 1 to get 5.

$$-0.3+\frac{4}{5}\left(-\frac{5}{2}\right)$$

Multiply \frac{4}{5} times -\frac{5}{2} by multiplying numerator times numerator and denominator times denominator.

$$-0.3+\frac{4\left(-5\right)}{5\times 2}$$

Do the multiplications in the fraction \frac{4\left(-5\right)}{5\times 2}.

$$-0.3+\frac{-20}{10}$$

Divide -20 by 10 to get -2.

$$-0.3-2$$

Subtract 2 from -0.3 to get -2.3.

$$-2.3$$

Factor

$$-2.3$$