Question

oblicz

a) -2 1/3 * (-27/28) =

b) 3 1/2 - 3 1/6 : (- 2 1/9) =

c) - 1 1/7 * 1 11/24 : 3/5 =

Answer 1

a) -2 1/3 * (-27/28) = -7/3 * (-27/28) = 9/4 = 2 i 1/4

 

b) 3 1/2 - 3 1/6 : (- 2 1/9) =3 1/2 - 19/6 : (-19/9) = 3 1/2 - 19/6 * (-9/19) = 3 1/2 + 3/2 = 3 1/2 + 1 1/2 = 4 i 2/2 = 5

 

c) - 1 1/7 * 1 11/24 : 3/5 = - 8/7 * 35/24 * 5/3 = -25/9 = -2 i 7/9

Answer 2

a)

-2 1/3 * (-27/28) = -7/3 * (-27/28 = 63/28 = 2 i 7/28 = 2 i 1/4

b)

3 1/2 - 3 1/6 : (-2 1/9) = 7/2 - 19/6:(-19/9) = 7/2 + 3/2 = 10/2 = 5

c)

-1 1/7 * 1 11/24 :3/5 =-8/7 * 35/24 * 5/3 = -25/9 = -2 i 7/9