Question

Kto pomoze potrzebuje na dzis,jak najszybciej .

Wg nie potrafie tego zadania prosze o pomoc !

TO CO PISZE KRESKA CZYLI NP 1/2 TO JEST ULAMEK JEDNA DRUGA .

1. (1/3 - 1/2) : (5/3 - 5/4 ) - ( 0,25 - 3/8 : 0,625)

2. 3/5 -(1,4 * 5/14 - 0,9/3 DO POTEGI 2) : (-1/5)

3. 4/5 : (1/2 - 1/5 ) - ( 2/3 -( 3/9 - 1 1/3))

4. (( -1 1/2) DO POTEGI 2 - (-1 1/3) DO POTEGI 2) : 4 1/4

POMOZCIE PLISSS !!!

Answer 1

a) (2/6 - 3/6) : (20/12 - 15/12) - (2/8 - 3/8 : 5/8) = -1/6 : 5/12 - (2/8 - 3/5) = -2/5 : -14/40 = 8/7 = -1 i 1/7

 

b)  3/5 -(1,4 * 5/14 - 0,9/3 DO POTEGI 2) : (-1/5) = 3/5 - (7/5* 5/14 - 9/10: 9 ) = 3/5 - 1/2 - 1/10 = 6/10 - 5/10 - 1/10 = 0

 

c) 4/5 : (1/2 - 1/5 ) - ( 2/3 -( 3/9 - 1 1/3)) = 4/5 : (5/10 - 2/10) - (6/9 - (3/9 - 12/9)) = 8/10 *10/3 - 15/9 = 24/9 - 15/9 = 9/9 = 1

 

d) (( -3/2)² - (-4/3)² ): 17/4 =  (9/4 - 16/9) : 17/4 = (81/36 - 64/36): 17/4 = 17/36 * 4/17= 1/9