The solution to 1/2 (4)+18 is 20

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1/2 (4)+18

Solution

\frac{1}{2} (4) + 18

20

Solution steps

\frac{1}{2} (4) + 18

Follow the PEMDAS order of operations

Multiply and divide (left to right)

\frac{1}{2} (4) : 2

\frac{1}{2} (4)

Apply rule:

(a) = a

(4) = 4

= \frac{1}{2} \cdot 4

\frac{1}{2} \cdot 4 = 2

\frac{1}{2} \cdot 4

Convert element to fraction:

4 = \frac{4}{1}

= \frac{1}{2} \cdot \frac{4}{1}

Apply the fraction rule:

\frac{a}{b} \cdot \frac{c}{d} = \frac{a \cdot c}{b \cdot d}

= \frac{1 \cdot 4}{2 \cdot 1}

\frac{1 \cdot 4}{2 \cdot 1} = 2

\frac{1 \cdot 4}{2 \cdot 1}

\frac{1 \cdot 4}{2 \cdot 1} = \frac{4}{2}

\frac{1 \cdot 4}{2 \cdot 1}

Multiply the numbers:

1 \cdot 4 = 4

= \frac{4}{2 \cdot 1}

Multiply the numbers:

2 \cdot 1 = 2

= \frac{4}{2}

= \frac{4}{2}

Divide the numbers:

\frac{4}{2} = 2

= 2

= 2

= 2

= 2 + 18

Add and subtract (left to right)

2 + 18 : 20

2 + 18

2 + 18 = 20

= 20

= 20

\frac{1}{6} + \frac{1}{7}

(- 8)^{2} + 7 (- 8) - 8

9^{2} - 13

9^{2} - 12

2 (5 + 6)