2целых 1/4÷ 3целых ×(3целых- 1целая 2/3)+ 5/6

2¹/₄÷ 3 ×(3 - 1²/₃)+ ⁵/₆ = 1,5
1) 2¹/₄÷ 3 = ⁶/₄÷ ³/₁ = ⁶/₄ × ¹/₃ = ⁶ˣ¹/₄ₓ₃ = ²/₄ = ¹/₂
2) 3 - 1²/₃ = 2³/₃ - 1²/₃ = 1¹/₃
3) ¹/₂ × 1¹/₃ = ¹/₂ × ⁴/₃ = ¹ˣ⁴/₂ₓ₃ = ²/₃
4) ²/₃ + ⁵/₆ = ²ˣ²/₆ + ⁵/₆ = ⁴/₆ + ⁵/₆ = ⁴⁺⁵/₆ = ⁹/₆ = ³/₂ = 1¹/₂ = 1,5

3 целых - 1 целая 2/3= 2-2/3=6/3-1/3=5/3
2 целых 1/4:3=9/4:3/1=9/4*1/3=3/4
3/4*5/3=5/4
5/4+5/6=30/24+20/24=50/24=2 целых 2/24=2 целых 1/12