Basic Math Examples

86

$86$ ,

83

$83$ ,

85

$85$ ,

78

$78$ ,

83

$83$ ,

89

$89$

Step 1

The mean of a set of numbers is the sum divided by the number of terms.

\frac{86 + 83 + 85 + 78 + 83 + 89}{6}

$\frac{86 + 83 + 85 + 78 + 83 + 89}{6}$

Step 2

Simplify the numerator.

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Step 2.1

Add

86

$86$ and

83

$83$ .

\frac{169 + 85 + 78 + 83 + 89}{6}

$\frac{169 + 85 + 78 + 83 + 89}{6}$

Step 2.2

Add

169

$169$ and

85

$85$ .

\frac{254 + 78 + 83 + 89}{6}

$\frac{254 + 78 + 83 + 89}{6}$

Step 2.3

Add

254

$254$ and

78

$78$ .

\frac{332 + 83 + 89}{6}

$\frac{332 + 83 + 89}{6}$

Step 2.4

Add

$332$ and

$83$ .

$\frac{415 + 89}{6}$

Step 2.5

Add

$415$ and

$89$ .

$\frac{504}{6}$

Step 3

Divide

$504$ by

$6$ .

$84$