Question

Calculati nr natural nenul x,din proportiile:


a)x/12=1/3+1/4/7



b)1/5-/1/5:5/4=x/75

Answer 1

Răspuns:

Explicație pas cu pas:

a  x:12=1:3+1:4:7=

x:12=1+1:7=

12=2:7

x=12+2:7

x=14:7

x=2

b     1:5-