Question

AJUTAŢIMĂ VĂ ROG FRUMOS
DAU COROANĂ ŞI 100 DE PUNCTE ​

Answer 1

Răspuns:

Explicație pas cu pas:

b) 7/12 : 3 1/16 = 7/12 : (3·16+1)/16 = 7/12 · 16/49 = 7·16/ (12·49) = 4/(3·7) =

= 4/21

c) 5 : 1 1/4 = 5 : (1·4+1)/4 = 5 : 5/4 = 5 · 4/5 = 4

d) 2 2/3 : 2 1/3 = (2·3+2)/3 : (2·3+1)/3 = 8/3 : 7/3 = 8/3 ·3/7 = 8/7

f) 5 1/6 : 6 8/9 = (5·6+1)/6 : (6·9+8)/9 = 31/6 : 62/9 = 31/6 · 9/62 =

= 9/(6·2) = 9/12 = 3/4

g) 16 : 9 3/5 = 16 : (9·5+3)/5 = 16 : 48/5 = 16 ·5/48 = 5/3

h) 3 3/4 : 1 1/4 = (3·4+3)/4 : (1·4+1)/4 = 15/4 : 5/4 = 15/4 ·4/5 = 3