Question

Czesc potrzebuje pomocy w rozwiazaniu tych zadan moze troche nie wyrazne ale jak bedziecie mieli problem w przeczytaniu to poprostu opuscie przyklad z gory dzieki ;)

Answer 1

zad.4
a) 17/12-9/8-17/6=34/24-27/24-68/24= - 61/24 = -2 13/24
b)27/4-8/3-19/6= 81/12-32/12-38/12= -11/12
c)20/9-23/6+16/3= 40/18-69/18+96/18= 67/18= 3 13/18
d)20/9+17/12-7/8=20/9+34/24-21/24=20/9+13/24=160/72+39/72=199/72=2 55/72

zad.5
a) -7/6*(-27/28)=27/24=1 1/8
b)-27/8*16/81=1*2/3=2/3
c)-8/7935/24*5/3= -1*5/3*5/3=-25/9=-2 7/9
d)7/2-19/6*(-9/19)= 7/2+3/2=10/2=5

zadanie 2
a) 1 3/5-2 1/6= 8/5-13/6=48/30-65/30=-17/30

b)3 3/8+2 5/6=27/8+17/6=81/24+68/24=149/24=6 5/24

c) 1/2-(-1/6-1/3)=3/6+1/6+2/6=7/6 = 1 1/6

D)7/5+(-5/4-4/3)= 7/5-5/4-4/3=84/60-75/60-80/60=-71/60= - 1 11/60

e) -(-2 2/3+7/15_=8/3-7/15=40/15-7/15=33/15=2 3/15= 2 1/5

f)-1 9/16-11/12= -25/16-11/12=-75/48-44/48= -119/48= -2 23/48

g)1 5/8-(-2 2/3+0,25) = 13/8+8/3-1/4= 39/24+64/24-6/24=97/24=4 1/24

h) 1 2/5-3 7/9-0,125=7/5-34/9-125/1000= 63/45-170/45-125/1000= -107/45-125/1000= -107/45-1/8 = -856/360-45/360=-901/360= -2 181/360

i)1/2-1/3-(1/4-1/5)=1/2-1/3-1/4+1/5= 3/6-2/6-5/20+4/20= 1/6-1/20= 10/60-3/60= 7/60

zad.3
a)11/4*7/1-22    +3  = 77/4-22  +3  = 19,25-22  +3  = -0,25+3 = -1/4+3/4 = 2/4=1/2
     6+5              4          11        4        11          4              4

b)18/33-11/33    *15    = 7/33  *  15/4 = 7/33*6/7*15/4= 15/22
   22/6-15/6        4          7/6

c)2-7,5    =  2-75/125= 2-3/5=1 2/5
     12,5