harmonic mean of 2, 3, 5 and 7
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Answer: 0.294 or 247/840
Step by step solution:
(1/2+1/3+1/5+1/7) ÷ 4
(105+70+42+30)/210 ÷4
247/840
Step by step solution:
(1/2+1/3+1/5+1/7) ÷ 4
(105+70+42+30)/210 ÷4
247/840
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