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Harmonic mean
H = 2ab / (a + b)
Where: H = harmonic mean, a = first term / coefficient a, b = coefficient b
Solved example
Given: a = 7, b = 5
Find: H (harmonic mean)
- Formula: H = 2·a·b/(a + b)
- Substitute the values: H = 2·5·7/(5 + 7)
- Result: H = 5.833333
Answer: H = 5.833333
Calculator
How to calculate Harmonic mean
- Write down the formula: H = 2ab / (a + b).
- Note the known values (a, b).
- Substitute them and simplify to find H.
- Use the calculator above to solve for any letter.
Frequently asked questions
What is the formula for Harmonic mean?
The formula is H = 2ab / (a + b), where H = harmonic mean, a = first term / coefficient a, b = coefficient b.
What is Harmonic mean when a = 7, b = 5?
H = 5.833333. Substitute the values into H = 2ab / (a + b) and simplify.