The solution to -2+1/2+1 is -1/2

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-2+1/2+1

Solution

- 2 + \frac{1}{2} + 1

- \frac{1}{2}

Solution steps

- 2 + \frac{1}{2} + 1

Follow the PEMDAS order of operations

Add and subtract (left to right)

- 2 + \frac{1}{2} = - \frac{3}{2}

= - \frac{3}{2} + 1

- \frac{3}{2} + 1 = - \frac{1}{2}

- \frac{3}{2} + 1

Convert element to fraction:

1 = \frac{1 \cdot 2}{2}

= \frac{1 \cdot 2}{2} - \frac{3}{2}

Since the denominators are equal, combine the fractions:

\frac{a}{c} \pm \frac{b}{c} = \frac{a \pm b}{c}

= \frac{1 \cdot 2 - 3}{2}

1 \cdot 2 - 3 = - 1

1 \cdot 2 - 3

Multiply the numbers:

1 \cdot 2 = 2

= 2 - 3

Subtract the numbers:

2 - 3 = - 1

= - 1

= \frac{- 1}{2}

Apply the fraction rule:

\frac{- a}{b} = - \frac{a}{b}

= - \frac{1}{2}

= - \frac{1}{2}

5 - 12 + 6 - 4 + 9 - 1 + 14

\frac{4 - ( 2 - 3 \times 1 ) - ( 2 - 1 )}{- 1}

- 21 + 7 (18 - 1)

11 \times 2^{2}

(- 5)^{2} - 5