1) (2 · ⅚)² - 1⅓ =
2) -6⅔ : 2 =
3) (-3)² · ⅓ =
4) (-2-4) · (-6) ÷ (-3)² =
1) (2 · ⅚)² - 1⅓ = (5/9)^2 - 1i1/3 = 25/9 - 4/3 = 25/9 - 12/9 = 13/9 = 1 i 4/9
2) -6⅔ : 2 = - 20/3 * 1/2 = - 10/3 = - 3i1/3
3) (-3)² · ⅓ = 9 * 1/3 = 3
4) (-2-4) · (-6) ÷ (-3)² = 6 * (-6) : 9 = -36: 9 = 4
1) (2 · ⅚)² - 1⅓ = 4 · 10/12 - 4/3 = 10/3 - 4/3= 6/3 =2
2) -6⅔ : 2 = -20/3 : 2 = -20/3 · 1/2 = -20/6= -3i2/6
3) (-3)² · ⅓ = 9 · ⅓ = 34) (-2-4) · (-6) ÷ (-3)² = (-6) · (-6) · 6 = 216
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1) (2 · ⅚)² - 1⅓ = (5/9)^2 - 1i1/3 = 25/9 - 4/3 = 25/9 - 12/9 = 13/9 = 1 i 4/9
2) -6⅔ : 2 = - 20/3 * 1/2 = - 10/3 = - 3i1/3
3) (-3)² · ⅓ = 9 * 1/3 = 3
4) (-2-4) · (-6) ÷ (-3)² = 6 * (-6) : 9 = -36: 9 = 4
1) (2 · ⅚)² - 1⅓ = 4 · 10/12 - 4/3 = 10/3 - 4/3= 6/3 =2
2) -6⅔ : 2 = -20/3 : 2 = -20/3 · 1/2 = -20/6= -3i2/6
3) (-3)² · ⅓ = 9 · ⅓ = 3
4) (-2-4) · (-6) ÷ (-3)² = (-6) · (-6) · 6 = 216