Solve 3.6-1.8left(2.5-1right)+0.6(2.5-1)(2.5-2)

$$3.6-1.8 \left( 2.5-1 \right) +0.6(2.5-1)(2.5-2)$$

Evaluate

$$1.35$$

Solution Steps

Subtract 1 from 2.5 to get 1.5.

$$3.6-1.8\times 1.5+0.6\left(2.5-1\right)\left(2.5-2\right)$$

Multiply 1.8 and 1.5 to get 2.7.

$$3.6-2.7+0.6\left(2.5-1\right)\left(2.5-2\right)$$

Subtract 2.7 from 3.6 to get 0.9.

$$0.9+0.6\left(2.5-1\right)\left(2.5-2\right)$$

Subtract 1 from 2.5 to get 1.5.

$$0.9+0.6\times 1.5\left(2.5-2\right)$$

Multiply 0.6 and 1.5 to get 0.9.

$$0.9+0.9\left(2.5-2\right)$$

Subtract 2 from 2.5 to get 0.5.

$$0.9+0.9\times 0.5$$

Multiply 0.9 and 0.5 to get 0.45.

$$0.9+0.45$$

Add 0.9 and 0.45 to get 1.35.

$$1.35$$

Factor

$$\frac{3 ^ {3}}{5 \cdot 2 ^ {2}} = 1\frac{7}{20} = 1.35$$