0.6*5/6+(5/6-2/15):7/30

Question

0.6*5/6+(5/6-2/15):7/30

Answer 1

0,6 × ⁵/₆ + (⁵/₆ - ²/₁₅) : ⁷/₃₀ = 3,5
1) ⁵/₆ - ²/₁₅ = ⁵ˣ⁵/₃₀ - ²ˣ²/₃₀ = ²⁵/₃₀ - ⁴/₃₀ = ²¹/₃₀
2) 0,6 × ⁵/₆ = ⁶/₁₀ × ⁵/₆ = ⁶ˣ⁵/₁₀ₓ₆ = ⁵/₁₀ = 0,5
3) ²¹/₃₀ : ⁷/₃₀ = ²¹/₃₀ × ³⁰/₇ = ²¹ˣ³⁰/₃₀ₓ₇ = ²¹/₇ = 3
4) 0,5 + 3 = 3,5

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