Question

Rozwiąż równania:

(1,5 + 2 1/3(dwa i jedna trzecia)) x (4 1/5 - 2,7) =

(1,5 + 2/3) x (6 2/5 - 4,9) =

(1 2/3 + 0,5) x (6 2/5 - 4,9) =

Answer 1

(1 1/2 +2 1/3) x(4 1/5 - 2 7/10)= (1 6/12+ 2 4/12) x (4 2/10 - 2 7/10) = 3 10/12 x 1 5/10 = 3 5/6 x 1 1/2= 23/4 = 5 3/4

(1 1/2 + 2/3)x (6 2/5 - 4.9)= (1 3/6 + 4/6) x (6 4/10 - 4 9/10) = 1 7/6 x 10 13/10 = 2 1/6 x 11 3/10= 13/6 x 113/10 = 1469/60 = 24 29/60

(1 2/3 + 1/2) x (6 2/5 - 4 9/10) = (1 4/6 + 3/6) x (6 4/10 - 4 9/10) = 1 7/6 x 1 5/10 = 2 1/6 x 1 1/2 = 13/6 x 3/2 = 3 1/4

 

mam nadzieję żę pomogłam . ; pp