3√1/15+6√0,6-√60

Interpret as: 3√(1/15) + 6√0,6 - √60.

Compute each part:

• 3√(1/15) = 3/√15 = √15/5
• 6√0,6 = 6√(3/5) = 6√15/5
• √60 = 2√15

Sum: √15/5 + 6√15/5 - 2√15 = (7√15)/5 - 2√15 = (7√15 - 10√15)/5 = -3√15/5

Final answer: -3√15/5 (approximately -2.324).