calculate average of 3 9 15 — step-by-step solution

⚠ 3 9 15 is read as 3915, the spaces being ignored: write 3*9*15 for a product

Let's calculate:

\frac{3 + 9 + 15}{3}

ⓘ Calculate the numerator and denominator before dividing:

3 + 9

12

\frac{12 + 15}{3}

ⓘ Calculate the numerator and denominator before dividing:

12 + 15

27

\frac{27}{3}

ⓘ We simplify the fraction by dividing the numerator and the denominator by

3

, their greatest common divisor:

\frac{27}{3}

9

▶Result:

9