Question

Cine e dispus sa ma ajute la punctul j? DAU COROANA!!!!

Answer 1

(0,5)² =(1/2)²=1/4

0,(6) = 6/9=2/3

0,375 = 375/1000 = 3/8

Ex. devine:

(1/4)/(2/3) + 1- (22/7) - 3/8 =(1/4)·(3/2)  + 1 - (22/7) - 3/8 = 3/8+1- (22/7) - 3/8 =

=1 - 22/7 = 7/7 -22/7

l) 

$\dfrac{3^{10}}{14^5} \cdot \dfrac{28^4}{3^8}:\dfrac{2^6\cdot3^2}{7^2} =\dfrac{3^{10}}{2^5\cdot7^5}\cdot\dfrac{2^8\cdot7^4}{3^8}\cdot\dfrac{7^2}{2^6\cdot3^2}=\dfrac{7}{8}$