Question

23:31; 7 4 4 Efectuați: ㅋ ca To 69 10 a 5: 7 f 14:2 3 3 7 2. b 4:5 18 5 c 9:- h 5:3- adda d 9:5 15 14 :3;​

Answer 1

Răspuns:

Explicație pas cu pas:

a) 5:(10/7) = 5·7/10 = 35/10⁽⁵ = 7/2

b) 4:(2/5) = 4·5/2 = 20/2 = 10

c) 9:(18/5) = 9·5/18 = 45/18⁽⁹ = 5/2

d) 9:(5 1/4) = 9:(5·4+1)/4 = 9:(21/4) = 9·4/21 = 36/21⁽³= 12/7

f) 14:(2 1/3) = 14:(2·3+1)/3 = 14:(7/3) = 14·3/7 = 2·3 = 6

g) 4/7 : (3 1/7) = 4/7 : (3·7+1)/7 = 4/7 : (22/7) = 4/7 ·7/22 = 4·7/(7·22) =

= 4/22⁽² = 2/11

h) 5 1/3 : (3 1/9) = (5·3+1)/3 : (3·9+1)/9 = 16/3 : 28/9 = 16/3 ·9/28 =

= 16·9/(3·28) = 4·3/7 = 12/7

i) 15/14 : 3 = 15/14 ·1/3 = 15/(14·3) = 5/14